openchemlib-utils - npm Package Compare versions

Comparing version 5.16.1 to 5.16.2

lib-esm/misc/getUnsaturation.js

@@ -18,4 +18,8 @@ const unsaturationsObject = {
 export function getUnsaturation(mf) {
+    if (!mf)
+        return undefined;
     // split a molecular formula into its elements
     const elements = mf.match(/[A-Z][a-z]*\d*/g);
+    if (!elements || elements.length === 0)
+        return undefined;
     let unsaturation = 0;
@@ -22,0 +26,0 @@ for (let i = 0; i < elements.length; i++) {

lib/misc/getUnsaturation.js

@@ -21,4 +21,8 @@ "use strict";
 function getUnsaturation(mf) {
+    if (!mf)
+        return undefined;
     // split a molecular formula into its elements
     const elements = mf.match(/[A-Z][a-z]*\d*/g);
+    if (!elements || elements.length === 0)
+        return undefined;
     let unsaturation = 0;
@@ -25,0 +29,0 @@ for (let i = 0; i < elements.length; i++) {

package.json

 {
   "name": "openchemlib-utils",
-  "version": "5.16.1",
+  "version": "5.16.2",
   "description": "Various utilities that extends openchemlib-js like HOSE codes or diastereotopic IDs",
@@ -5,0 +5,0 @@ "main": "./lib/index.js",

src/misc/getUnsaturation.js

@@ -19,4 +19,6 @@ const unsaturationsObject = {
 export function getUnsaturation(mf) {
+  if (!mf) return undefined;
   // split a molecular formula into its elements
   const elements = mf.match(/[A-Z][a-z]*\d*/g);
+  if (!elements || elements.length === 0) return undefined;
   let unsaturation = 0;
@@ -23,0 +25,0 @@ for (let i = 0; i < elements.length; i++) {

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