fix: fixed crash on cv layout (#177)

Author: baolanlequang

dist/helpers/cfg.js

@@ -22,10 +22,12 @@ const btnCmdMpyPeak = function (layoutSt, mpySt) {
   let smExtextVal = false;
   if (multiplicities) {
     const selectedMultiplicity = multiplicities[curveIdx];
-    const {
-      smExtext
-    } = selectedMultiplicity;
-    smExtextVal = smExtext;
+    if (selectedMultiplicity) {
+      const {
+        smExtext
+      } = selectedMultiplicity;
+      smExtextVal = smExtext;
+    }
   }
   return btnCmdMpy(layoutSt) || !smExtextVal;
 };

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@complat/react-spectra-editor",
-  "version": "1.0.0-rc20",
+  "version": "1.0.0-rc20.patch-1",
   "description": "An editor to View and Edit Chemical Spectra data (NMR, IR and MS, CV, UIVIS, XRD).",
   "repository": {
     "type": "git",

src/helpers/cfg.js

@@ -33,8 +33,10 @@ const btnCmdMpyPeak = (layoutSt, mpySt, curveIdx = 0) => {
   let smExtextVal = false;
   if (multiplicities) {
     const selectedMultiplicity = multiplicities[curveIdx];
-    const { smExtext } = selectedMultiplicity;
-    smExtextVal = smExtext;
+    if (selectedMultiplicity) {
+      const { smExtext } = selectedMultiplicity;
+      smExtextVal = smExtext;
+    }
   }
   return btnCmdMpy(layoutSt) || !smExtextVal;
 };