diff --git a/modules/_createIndexFinder.js b/modules/_createIndexFinder.js
index eadedef0b..3c4b7f14d 100644
--- a/modules/_createIndexFinder.js
+++ b/modules/_createIndexFinder.js
@@ -6,7 +6,7 @@ import isNaN from './isNaN.js';
 export default function createIndexFinder(dir, predicateFind, sortedIndex) {
   return function(array, item, idx) {
     var i = 0, length = getLength(array);
-    if (typeof idx == 'number') {
+    if (typeof idx === 'number') {
       if (dir > 0) {
         i = idx >= 0 ? idx : Math.max(idx + length, i);
       } else {
diff --git a/modules/_createSizePropertyCheck.js b/modules/_createSizePropertyCheck.js
index cc38007bc..7a4c1f314 100644
--- a/modules/_createSizePropertyCheck.js
+++ b/modules/_createSizePropertyCheck.js
@@ -4,6 +4,6 @@ import { MAX_ARRAY_INDEX } from './_setup.js';
 export default function createSizePropertyCheck(getSizeProperty) {
   return function(collection) {
     var sizeProperty = getSizeProperty(collection);
-    return typeof sizeProperty == 'number' && sizeProperty >= 0 && sizeProperty <= MAX_ARRAY_INDEX;
+    return typeof sizeProperty === 'number' && sizeProperty >= 0 && sizeProperty <= MAX_ARRAY_INDEX;
   }
 }
diff --git a/modules/_setup.js b/modules/_setup.js
index de8d79ca9..4ae6fe472 100644
--- a/modules/_setup.js
+++ b/modules/_setup.js
@@ -4,8 +4,8 @@ export var VERSION = '1.13.6';
 // Establish the root object, `window` (`self`) in the browser, `global`
 // on the server, or `this` in some virtual machines. We use `self`
 // instead of `window` for `WebWorker` support.
-export var root = (typeof self == 'object' && self.self === self && self) ||
-          (typeof global == 'object' && global.global === global && global) ||
+export var root = (typeof self === 'object' && self.self === self && self) ||
+          (typeof global === 'object' && global.global === global && global) ||
           Function('return this')() ||
           {};
 
diff --git a/modules/contains.js b/modules/contains.js
index 11cf64d61..0b73f6d13 100644
--- a/modules/contains.js
+++ b/modules/contains.js
@@ -5,6 +5,6 @@ import indexOf from './indexOf.js';
 // Determine if the array or object contains a given item (using `===`).
 export default function contains(obj, item, fromIndex, guard) {
   if (!isArrayLike(obj)) obj = values(obj);
-  if (typeof fromIndex != 'number' || guard) fromIndex = 0;
+  if (typeof fromIndex !== 'number' || guard) fromIndex = 0;
   return indexOf(obj, item, fromIndex) >= 0;
 }
diff --git a/modules/isEmpty.js b/modules/isEmpty.js
index 718ef4a62..145d8f92c 100644
--- a/modules/isEmpty.js
+++ b/modules/isEmpty.js
@@ -11,7 +11,7 @@ export default function isEmpty(obj) {
   // Skip the more expensive `toString`-based type checks if `obj` has no
   // `.length`.
   var length = getLength(obj);
-  if (typeof length == 'number' && (
+  if (typeof length === 'number' && (
     isArray(obj) || isString(obj) || isArguments(obj)
   )) return length === 0;
   return getLength(keys(obj)) === 0;
diff --git a/modules/isEqual.js b/modules/isEqual.js
index 5285c55a4..77718dec1 100644
--- a/modules/isEqual.js
+++ b/modules/isEqual.js
@@ -23,7 +23,7 @@ function eq(a, b, aStack, bStack) {
   if (a !== a) return b !== b;
   // Exhaust primitive checks
   var type = typeof a;
-  if (type !== 'function' && type !== 'object' && typeof b != 'object') return false;
+  if (type !== 'function' && type !== 'object' && typeof b !== 'object') return false;
   return deepEq(a, b, aStack, bStack);
 }
 
@@ -36,7 +36,7 @@ function deepEq(a, b, aStack, bStack) {
   var className = toString.call(a);
   if (className !== toString.call(b)) return false;
   // Work around a bug in IE 10 - Edge 13.
-  if (hasStringTagBug && className == '[object Object]' && isDataView(a)) {
+  if (hasStringTagBug && className === '[object Object]' && isDataView(a)) {
     if (!isDataView(b)) return false;
     className = tagDataView;
   }
@@ -76,7 +76,7 @@ function deepEq(a, b, aStack, bStack) {
       areArrays = true;
   }
   if (!areArrays) {
-    if (typeof a != 'object' || typeof b != 'object') return false;
+    if (typeof a !== 'object' || typeof b !== 'object') return false;
 
     // Objects with different constructors are not equivalent, but `Object`s or `Array`s
     // from different frames are.
diff --git a/modules/isFunction.js b/modules/isFunction.js
index 35c41be0c..7150181d7 100644
--- a/modules/isFunction.js
+++ b/modules/isFunction.js
@@ -6,9 +6,9 @@ var isFunction = tagTester('Function');
 // Optimize `isFunction` if appropriate. Work around some `typeof` bugs in old
 // v8, IE 11 (#1621), Safari 8 (#1929), and PhantomJS (#2236).
 var nodelist = root.document && root.document.childNodes;
-if (typeof /./ != 'function' && typeof Int8Array != 'object' && typeof nodelist != 'function') {
+if (typeof /./ !== 'function' && typeof Int8Array !== 'object' && typeof nodelist !== 'function') {
   isFunction = function(obj) {
-    return typeof obj == 'function' || false;
+    return typeof obj === 'function' || false;
   };
 }
 
diff --git a/modules/max.js b/modules/max.js
index e32540978..c9c0b6ca6 100644
--- a/modules/max.js
+++ b/modules/max.js
@@ -7,7 +7,7 @@ import each from './each.js';
 export default function max(obj, iteratee, context) {
   var result = -Infinity, lastComputed = -Infinity,
       value, computed;
-  if (iteratee == null || (typeof iteratee == 'number' && typeof obj[0] != 'object' && obj != null)) {
+  if (iteratee == null || (typeof iteratee === 'number' && typeof obj[0] !== 'object' && obj != null)) {
     obj = isArrayLike(obj) ? obj : values(obj);
     for (var i = 0, length = obj.length; i < length; i++) {
       value = obj[i];
diff --git a/modules/min.js b/modules/min.js
index c6b25fd8f..102872a3c 100644
--- a/modules/min.js
+++ b/modules/min.js
@@ -7,7 +7,7 @@ import each from './each.js';
 export default function min(obj, iteratee, context) {
   var result = Infinity, lastComputed = Infinity,
       value, computed;
-  if (iteratee == null || (typeof iteratee == 'number' && typeof obj[0] != 'object' && obj != null)) {
+  if (iteratee == null || (typeof iteratee === 'number' && typeof obj[0] !== 'object' && obj != null)) {
     obj = isArrayLike(obj) ? obj : values(obj);
     for (var i = 0, length = obj.length; i < length; i++) {
       value = obj[i];
diff --git a/test/collections.js b/test/collections.js
index 3439a100f..d601fadd1 100644
--- a/test/collections.js
+++ b/test/collections.js
@@ -883,7 +883,7 @@
     assert.deepEqual(_.toArray(expected.join('')), expected, 'maintains astral characters');
     assert.deepEqual(_.toArray(''), [], 'empty string into empty array');
 
-    if (typeof document != 'undefined') {
+    if (typeof document !== 'undefined') {
       // test in IE < 9
       var actual;
       try {
@@ -942,7 +942,7 @@
     }, predicate);
   });
 
-  if (typeof document != 'undefined') {
+  if (typeof document !== 'undefined') {
     QUnit.test('Can use various collection methods on NodeLists', function(assert) {
       var parent = document.createElement('div');
       parent.innerHTML = '<span id=id1></span>textnode<span id=id2></span>';
diff --git a/test/cross-document.js b/test/cross-document.js
index 51546b214..c72407542 100644
--- a/test/cross-document.js
+++ b/test/cross-document.js
@@ -111,7 +111,7 @@
     assert.ok(_.isError(iError), 'even from another frame');
   });
 
-  if (typeof ActiveXObject != 'undefined') {
+  if (typeof ActiveXObject !== 'undefined') {
     QUnit.test('IE host objects', function(assert) {
       var xml = new ActiveXObject('Msxml2.DOMDocument.3.0');
       assert.ok(!_.isNumber(xml));
diff --git a/underscore-esm.js b/underscore-esm.js
index 07ff9851a..12b00817e 100644
--- a/underscore-esm.js
+++ b/underscore-esm.js
@@ -9,8 +9,8 @@ var VERSION = '1.13.6';
 // Establish the root object, `window` (`self`) in the browser, `global`
 // on the server, or `this` in some virtual machines. We use `self`
 // instead of `window` for `WebWorker` support.
-var root = (typeof self == 'object' && self.self === self && self) ||
-          (typeof global == 'object' && global.global === global && global) ||
+var root = (typeof self === 'object' && self.self === self && self) ||
+          (typeof global === 'object' && global.global === global && global) ||
           Function('return this')() ||
           {};
 
@@ -128,9 +128,9 @@ var isFunction = tagTester('Function');
 // Optimize `isFunction` if appropriate. Work around some `typeof` bugs in old
 // v8, IE 11 (#1621), Safari 8 (#1929), and PhantomJS (#2236).
 var nodelist = root.document && root.document.childNodes;
-if (typeof /./ != 'function' && typeof Int8Array != 'object' && typeof nodelist != 'function') {
+if (typeof /./ !== 'function' && typeof Int8Array !== 'object' && typeof nodelist !== 'function') {
   isFunction = function(obj) {
-    return typeof obj == 'function' || false;
+    return typeof obj === 'function' || false;
   };
 }
 
@@ -200,7 +200,7 @@ function constant(value) {
 function createSizePropertyCheck(getSizeProperty) {
   return function(collection) {
     var sizeProperty = getSizeProperty(collection);
-    return typeof sizeProperty == 'number' && sizeProperty >= 0 && sizeProperty <= MAX_ARRAY_INDEX;
+    return typeof sizeProperty === 'number' && sizeProperty >= 0 && sizeProperty <= MAX_ARRAY_INDEX;
   }
 }
 
@@ -288,7 +288,7 @@ function isEmpty(obj) {
   // Skip the more expensive `toString`-based type checks if `obj` has no
   // `.length`.
   var length = getLength(obj);
-  if (typeof length == 'number' && (
+  if (typeof length === 'number' && (
     isArray(obj) || isString(obj) || isArguments$1(obj)
   )) return length === 0;
   return getLength(keys(obj)) === 0;
@@ -354,7 +354,7 @@ function eq(a, b, aStack, bStack) {
   if (a !== a) return b !== b;
   // Exhaust primitive checks
   var type = typeof a;
-  if (type !== 'function' && type !== 'object' && typeof b != 'object') return false;
+  if (type !== 'function' && type !== 'object' && typeof b !== 'object') return false;
   return deepEq(a, b, aStack, bStack);
 }
 
@@ -367,7 +367,7 @@ function deepEq(a, b, aStack, bStack) {
   var className = toString.call(a);
   if (className !== toString.call(b)) return false;
   // Work around a bug in IE 10 - Edge 13.
-  if (hasStringTagBug && className == '[object Object]' && isDataView$1(a)) {
+  if (hasStringTagBug && className === '[object Object]' && isDataView$1(a)) {
     if (!isDataView$1(b)) return false;
     className = tagDataView;
   }
@@ -407,7 +407,7 @@ function deepEq(a, b, aStack, bStack) {
       areArrays = true;
   }
   if (!areArrays) {
-    if (typeof a != 'object' || typeof b != 'object') return false;
+    if (typeof a !== 'object' || typeof b !== 'object') return false;
 
     // Objects with different constructors are not equivalent, but `Object`s or `Array`s
     // from different frames are.
@@ -1265,7 +1265,7 @@ function sortedIndex(array, obj, iteratee, context) {
 function createIndexFinder(dir, predicateFind, sortedIndex) {
   return function(array, item, idx) {
     var i = 0, length = getLength(array);
-    if (typeof idx == 'number') {
+    if (typeof idx === 'number') {
       if (dir > 0) {
         i = idx >= 0 ? idx : Math.max(idx + length, i);
       } else {
@@ -1416,7 +1416,7 @@ function some(obj, predicate, context) {
 // Determine if the array or object contains a given item (using `===`).
 function contains(obj, item, fromIndex, guard) {
   if (!isArrayLike(obj)) obj = values(obj);
-  if (typeof fromIndex != 'number' || guard) fromIndex = 0;
+  if (typeof fromIndex !== 'number' || guard) fromIndex = 0;
   return indexOf(obj, item, fromIndex) >= 0;
 }
 
@@ -1458,7 +1458,7 @@ function where(obj, attrs) {
 function max(obj, iteratee, context) {
   var result = -Infinity, lastComputed = -Infinity,
       value, computed;
-  if (iteratee == null || (typeof iteratee == 'number' && typeof obj[0] != 'object' && obj != null)) {
+  if (iteratee == null || (typeof iteratee === 'number' && typeof obj[0] !== 'object' && obj != null)) {
     obj = isArrayLike(obj) ? obj : values(obj);
     for (var i = 0, length = obj.length; i < length; i++) {
       value = obj[i];
@@ -1483,7 +1483,7 @@ function max(obj, iteratee, context) {
 function min(obj, iteratee, context) {
   var result = Infinity, lastComputed = Infinity,
       value, computed;
-  if (iteratee == null || (typeof iteratee == 'number' && typeof obj[0] != 'object' && obj != null)) {
+  if (iteratee == null || (typeof iteratee === 'number' && typeof obj[0] !== 'object' && obj != null)) {
     obj = isArrayLike(obj) ? obj : values(obj);
     for (var i = 0, length = obj.length; i < length; i++) {
       value = obj[i];
diff --git a/underscore-node-f.cjs b/underscore-node-f.cjs
index e1b1ac7b8..b710c62f4 100644
--- a/underscore-node-f.cjs
+++ b/underscore-node-f.cjs
@@ -11,8 +11,8 @@ var VERSION = '1.13.6';
 // Establish the root object, `window` (`self`) in the browser, `global`
 // on the server, or `this` in some virtual machines. We use `self`
 // instead of `window` for `WebWorker` support.
-var root = (typeof self == 'object' && self.self === self && self) ||
-          (typeof global == 'object' && global.global === global && global) ||
+var root = (typeof self === 'object' && self.self === self && self) ||
+          (typeof global === 'object' && global.global === global && global) ||
           Function('return this')() ||
           {};
 
@@ -130,9 +130,9 @@ var isFunction = tagTester('Function');
 // Optimize `isFunction` if appropriate. Work around some `typeof` bugs in old
 // v8, IE 11 (#1621), Safari 8 (#1929), and PhantomJS (#2236).
 var nodelist = root.document && root.document.childNodes;
-if (typeof /./ != 'function' && typeof Int8Array != 'object' && typeof nodelist != 'function') {
+if (typeof /./ !== 'function' && typeof Int8Array !== 'object' && typeof nodelist !== 'function') {
   isFunction = function(obj) {
-    return typeof obj == 'function' || false;
+    return typeof obj === 'function' || false;
   };
 }
 
@@ -202,7 +202,7 @@ function constant(value) {
 function createSizePropertyCheck(getSizeProperty) {
   return function(collection) {
     var sizeProperty = getSizeProperty(collection);
-    return typeof sizeProperty == 'number' && sizeProperty >= 0 && sizeProperty <= MAX_ARRAY_INDEX;
+    return typeof sizeProperty === 'number' && sizeProperty >= 0 && sizeProperty <= MAX_ARRAY_INDEX;
   }
 }
 
@@ -290,7 +290,7 @@ function isEmpty(obj) {
   // Skip the more expensive `toString`-based type checks if `obj` has no
   // `.length`.
   var length = getLength(obj);
-  if (typeof length == 'number' && (
+  if (typeof length === 'number' && (
     isArray(obj) || isString(obj) || isArguments$1(obj)
   )) return length === 0;
   return getLength(keys(obj)) === 0;
@@ -356,7 +356,7 @@ function eq(a, b, aStack, bStack) {
   if (a !== a) return b !== b;
   // Exhaust primitive checks
   var type = typeof a;
-  if (type !== 'function' && type !== 'object' && typeof b != 'object') return false;
+  if (type !== 'function' && type !== 'object' && typeof b !== 'object') return false;
   return deepEq(a, b, aStack, bStack);
 }
 
@@ -369,7 +369,7 @@ function deepEq(a, b, aStack, bStack) {
   var className = toString.call(a);
   if (className !== toString.call(b)) return false;
   // Work around a bug in IE 10 - Edge 13.
-  if (hasStringTagBug && className == '[object Object]' && isDataView$1(a)) {
+  if (hasStringTagBug && className === '[object Object]' && isDataView$1(a)) {
     if (!isDataView$1(b)) return false;
     className = tagDataView;
   }
@@ -409,7 +409,7 @@ function deepEq(a, b, aStack, bStack) {
       areArrays = true;
   }
   if (!areArrays) {
-    if (typeof a != 'object' || typeof b != 'object') return false;
+    if (typeof a !== 'object' || typeof b !== 'object') return false;
 
     // Objects with different constructors are not equivalent, but `Object`s or `Array`s
     // from different frames are.
@@ -1267,7 +1267,7 @@ function sortedIndex(array, obj, iteratee, context) {
 function createIndexFinder(dir, predicateFind, sortedIndex) {
   return function(array, item, idx) {
     var i = 0, length = getLength(array);
-    if (typeof idx == 'number') {
+    if (typeof idx === 'number') {
       if (dir > 0) {
         i = idx >= 0 ? idx : Math.max(idx + length, i);
       } else {
@@ -1418,7 +1418,7 @@ function some(obj, predicate, context) {
 // Determine if the array or object contains a given item (using `===`).
 function contains(obj, item, fromIndex, guard) {
   if (!isArrayLike(obj)) obj = values(obj);
-  if (typeof fromIndex != 'number' || guard) fromIndex = 0;
+  if (typeof fromIndex !== 'number' || guard) fromIndex = 0;
   return indexOf(obj, item, fromIndex) >= 0;
 }
 
@@ -1460,7 +1460,7 @@ function where(obj, attrs) {
 function max(obj, iteratee, context) {
   var result = -Infinity, lastComputed = -Infinity,
       value, computed;
-  if (iteratee == null || (typeof iteratee == 'number' && typeof obj[0] != 'object' && obj != null)) {
+  if (iteratee == null || (typeof iteratee === 'number' && typeof obj[0] !== 'object' && obj != null)) {
     obj = isArrayLike(obj) ? obj : values(obj);
     for (var i = 0, length = obj.length; i < length; i++) {
       value = obj[i];
@@ -1485,7 +1485,7 @@ function max(obj, iteratee, context) {
 function min(obj, iteratee, context) {
   var result = Infinity, lastComputed = Infinity,
       value, computed;
-  if (iteratee == null || (typeof iteratee == 'number' && typeof obj[0] != 'object' && obj != null)) {
+  if (iteratee == null || (typeof iteratee === 'number' && typeof obj[0] !== 'object' && obj != null)) {
     obj = isArrayLike(obj) ? obj : values(obj);
     for (var i = 0, length = obj.length; i < length; i++) {
       value = obj[i];
diff --git a/underscore-umd.js b/underscore-umd.js
index c81e732e9..01c90ad5b 100644
--- a/underscore-umd.js
+++ b/underscore-umd.js
@@ -18,8 +18,8 @@
   // Establish the root object, `window` (`self`) in the browser, `global`
   // on the server, or `this` in some virtual machines. We use `self`
   // instead of `window` for `WebWorker` support.
-  var root = (typeof self == 'object' && self.self === self && self) ||
-            (typeof global == 'object' && global.global === global && global) ||
+  var root = (typeof self === 'object' && self.self === self && self) ||
+            (typeof global === 'object' && global.global === global && global) ||
             Function('return this')() ||
             {};
 
@@ -137,9 +137,9 @@
   // Optimize `isFunction` if appropriate. Work around some `typeof` bugs in old
   // v8, IE 11 (#1621), Safari 8 (#1929), and PhantomJS (#2236).
   var nodelist = root.document && root.document.childNodes;
-  if (typeof /./ != 'function' && typeof Int8Array != 'object' && typeof nodelist != 'function') {
+  if (typeof /./ !== 'function' && typeof Int8Array !== 'object' && typeof nodelist !== 'function') {
     isFunction = function(obj) {
-      return typeof obj == 'function' || false;
+      return typeof obj === 'function' || false;
     };
   }
 
@@ -209,7 +209,7 @@
   function createSizePropertyCheck(getSizeProperty) {
     return function(collection) {
       var sizeProperty = getSizeProperty(collection);
-      return typeof sizeProperty == 'number' && sizeProperty >= 0 && sizeProperty <= MAX_ARRAY_INDEX;
+      return typeof sizeProperty === 'number' && sizeProperty >= 0 && sizeProperty <= MAX_ARRAY_INDEX;
     }
   }
 
@@ -297,7 +297,7 @@
     // Skip the more expensive `toString`-based type checks if `obj` has no
     // `.length`.
     var length = getLength(obj);
-    if (typeof length == 'number' && (
+    if (typeof length === 'number' && (
       isArray(obj) || isString(obj) || isArguments$1(obj)
     )) return length === 0;
     return getLength(keys(obj)) === 0;
@@ -363,7 +363,7 @@
     if (a !== a) return b !== b;
     // Exhaust primitive checks
     var type = typeof a;
-    if (type !== 'function' && type !== 'object' && typeof b != 'object') return false;
+    if (type !== 'function' && type !== 'object' && typeof b !== 'object') return false;
     return deepEq(a, b, aStack, bStack);
   }
 
@@ -376,7 +376,7 @@
     var className = toString.call(a);
     if (className !== toString.call(b)) return false;
     // Work around a bug in IE 10 - Edge 13.
-    if (hasStringTagBug && className == '[object Object]' && isDataView$1(a)) {
+    if (hasStringTagBug && className === '[object Object]' && isDataView$1(a)) {
       if (!isDataView$1(b)) return false;
       className = tagDataView;
     }
@@ -416,7 +416,7 @@
         areArrays = true;
     }
     if (!areArrays) {
-      if (typeof a != 'object' || typeof b != 'object') return false;
+      if (typeof a !== 'object' || typeof b !== 'object') return false;
 
       // Objects with different constructors are not equivalent, but `Object`s or `Array`s
       // from different frames are.
@@ -1274,7 +1274,7 @@
   function createIndexFinder(dir, predicateFind, sortedIndex) {
     return function(array, item, idx) {
       var i = 0, length = getLength(array);
-      if (typeof idx == 'number') {
+      if (typeof idx === 'number') {
         if (dir > 0) {
           i = idx >= 0 ? idx : Math.max(idx + length, i);
         } else {
@@ -1425,7 +1425,7 @@
   // Determine if the array or object contains a given item (using `===`).
   function contains(obj, item, fromIndex, guard) {
     if (!isArrayLike(obj)) obj = values(obj);
-    if (typeof fromIndex != 'number' || guard) fromIndex = 0;
+    if (typeof fromIndex !== 'number' || guard) fromIndex = 0;
     return indexOf(obj, item, fromIndex) >= 0;
   }
 
@@ -1467,7 +1467,7 @@
   function max(obj, iteratee, context) {
     var result = -Infinity, lastComputed = -Infinity,
         value, computed;
-    if (iteratee == null || (typeof iteratee == 'number' && typeof obj[0] != 'object' && obj != null)) {
+    if (iteratee == null || (typeof iteratee === 'number' && typeof obj[0] !== 'object' && obj != null)) {
       obj = isArrayLike(obj) ? obj : values(obj);
       for (var i = 0, length = obj.length; i < length; i++) {
         value = obj[i];
@@ -1492,7 +1492,7 @@
   function min(obj, iteratee, context) {
     var result = Infinity, lastComputed = Infinity,
         value, computed;
-    if (iteratee == null || (typeof iteratee == 'number' && typeof obj[0] != 'object' && obj != null)) {
+    if (iteratee == null || (typeof iteratee === 'number' && typeof obj[0] !== 'object' && obj != null)) {
       obj = isArrayLike(obj) ? obj : values(obj);
       for (var i = 0, length = obj.length; i < length; i++) {
         value = obj[i];
diff --git a/underscore.js b/underscore.js
index c81e732e9..01c90ad5b 100644
--- a/underscore.js
+++ b/underscore.js
@@ -18,8 +18,8 @@
   // Establish the root object, `window` (`self`) in the browser, `global`
   // on the server, or `this` in some virtual machines. We use `self`
   // instead of `window` for `WebWorker` support.
-  var root = (typeof self == 'object' && self.self === self && self) ||
-            (typeof global == 'object' && global.global === global && global) ||
+  var root = (typeof self === 'object' && self.self === self && self) ||
+            (typeof global === 'object' && global.global === global && global) ||
             Function('return this')() ||
             {};
 
@@ -137,9 +137,9 @@
   // Optimize `isFunction` if appropriate. Work around some `typeof` bugs in old
   // v8, IE 11 (#1621), Safari 8 (#1929), and PhantomJS (#2236).
   var nodelist = root.document && root.document.childNodes;
-  if (typeof /./ != 'function' && typeof Int8Array != 'object' && typeof nodelist != 'function') {
+  if (typeof /./ !== 'function' && typeof Int8Array !== 'object' && typeof nodelist !== 'function') {
     isFunction = function(obj) {
-      return typeof obj == 'function' || false;
+      return typeof obj === 'function' || false;
     };
   }
 
@@ -209,7 +209,7 @@
   function createSizePropertyCheck(getSizeProperty) {
     return function(collection) {
       var sizeProperty = getSizeProperty(collection);
-      return typeof sizeProperty == 'number' && sizeProperty >= 0 && sizeProperty <= MAX_ARRAY_INDEX;
+      return typeof sizeProperty === 'number' && sizeProperty >= 0 && sizeProperty <= MAX_ARRAY_INDEX;
     }
   }
 
@@ -297,7 +297,7 @@
     // Skip the more expensive `toString`-based type checks if `obj` has no
     // `.length`.
     var length = getLength(obj);
-    if (typeof length == 'number' && (
+    if (typeof length === 'number' && (
       isArray(obj) || isString(obj) || isArguments$1(obj)
     )) return length === 0;
     return getLength(keys(obj)) === 0;
@@ -363,7 +363,7 @@
     if (a !== a) return b !== b;
     // Exhaust primitive checks
     var type = typeof a;
-    if (type !== 'function' && type !== 'object' && typeof b != 'object') return false;
+    if (type !== 'function' && type !== 'object' && typeof b !== 'object') return false;
     return deepEq(a, b, aStack, bStack);
   }
 
@@ -376,7 +376,7 @@
     var className = toString.call(a);
     if (className !== toString.call(b)) return false;
     // Work around a bug in IE 10 - Edge 13.
-    if (hasStringTagBug && className == '[object Object]' && isDataView$1(a)) {
+    if (hasStringTagBug && className === '[object Object]' && isDataView$1(a)) {
       if (!isDataView$1(b)) return false;
       className = tagDataView;
     }
@@ -416,7 +416,7 @@
         areArrays = true;
     }
     if (!areArrays) {
-      if (typeof a != 'object' || typeof b != 'object') return false;
+      if (typeof a !== 'object' || typeof b !== 'object') return false;
 
       // Objects with different constructors are not equivalent, but `Object`s or `Array`s
       // from different frames are.
@@ -1274,7 +1274,7 @@
   function createIndexFinder(dir, predicateFind, sortedIndex) {
     return function(array, item, idx) {
       var i = 0, length = getLength(array);
-      if (typeof idx == 'number') {
+      if (typeof idx === 'number') {
         if (dir > 0) {
           i = idx >= 0 ? idx : Math.max(idx + length, i);
         } else {
@@ -1425,7 +1425,7 @@
   // Determine if the array or object contains a given item (using `===`).
   function contains(obj, item, fromIndex, guard) {
     if (!isArrayLike(obj)) obj = values(obj);
-    if (typeof fromIndex != 'number' || guard) fromIndex = 0;
+    if (typeof fromIndex !== 'number' || guard) fromIndex = 0;
     return indexOf(obj, item, fromIndex) >= 0;
   }
 
@@ -1467,7 +1467,7 @@
   function max(obj, iteratee, context) {
     var result = -Infinity, lastComputed = -Infinity,
         value, computed;
-    if (iteratee == null || (typeof iteratee == 'number' && typeof obj[0] != 'object' && obj != null)) {
+    if (iteratee == null || (typeof iteratee === 'number' && typeof obj[0] !== 'object' && obj != null)) {
       obj = isArrayLike(obj) ? obj : values(obj);
       for (var i = 0, length = obj.length; i < length; i++) {
         value = obj[i];
@@ -1492,7 +1492,7 @@
   function min(obj, iteratee, context) {
     var result = Infinity, lastComputed = Infinity,
         value, computed;
-    if (iteratee == null || (typeof iteratee == 'number' && typeof obj[0] != 'object' && obj != null)) {
+    if (iteratee == null || (typeof iteratee === 'number' && typeof obj[0] !== 'object' && obj != null)) {
       obj = isArrayLike(obj) ? obj : values(obj);
       for (var i = 0, length = obj.length; i < length; i++) {
         value = obj[i];