Refactor code

src/helpers/objects.ts

@@ -1,5 +1,5 @@
 /**
- * Get the nested properties of an object
+ * Get the nested properties of an object.
  * This solution is lighter than the lodash get-version.
  * Source: http://stackoverflow.com/a/6491621/6942210
  */

src/i18n/index.ts

@@ -41,10 +41,9 @@ const getTranslationObject = async (language: string) => {
  * and the fallback (required for testing purposes).
  * */
 export const getTranslationValue = (key: string, translations = currentTranslation, fallback = fallbackTranslation) => {
-    return getObjectPropertyValue(translations, key) ?
-        getObjectPropertyValue(translations, key) :
-        getObjectPropertyValue(fallback, key) ?
-            getObjectPropertyValue(fallback, key) : undefined;
+    return getObjectPropertyValue(translations, key)
+        || getObjectPropertyValue(fallback, key)
+        || undefined;
 };
 
 /**

src/icons/generator/jsonGenerator.ts

@@ -31,23 +31,15 @@ export const createIconFile = (updatedConfigs?: IconJsonOptions, updatedJSONConf
     const options: IconJsonOptions = merge({}, getDefaultIconOptions(), updatedJSONConfig);
     const json = generateIconConfigurationObject(options);
 
-    // make sure that the opacity and saturation values must be entered correctly to trigger a reload.
-    if (updatedConfigs) {
-        if (updatedConfigs.opacity !== undefined && !validateOpacityValue(updatedConfigs.opacity)) {
-            throw Error('Material Icons: Invalid opacity value!');
-        }
-        if (updatedConfigs.saturation !== undefined && !validateSaturationValue(updatedConfigs.saturation)) {
-            throw Error('Material Icons: Invalid saturation value!');
-        }
+    // make sure that the folder color, opacity and saturation values are entered correctly
+    if (updatedConfigs?.opacity && !validateOpacityValue(updatedConfigs?.opacity)) {
+        throw Error('Material Icons: Invalid opacity value!');
     }
-
-    // make sure that the value of the folder color is entered correctly to trigger a reload.
-    if (updatedConfigs && updatedConfigs.folders) {
-        if (typeof updatedConfigs.folders.color !== 'undefined') {
-            if (!validateHEXColorCode(updatedConfigs.folders.color)) {
-                throw Error('Material Icons: Invalid folder color value!');
-            }
-        }
+    if (updatedConfigs?.saturation && !validateSaturationValue(updatedConfigs?.saturation)) {
+        throw Error('Material Icons: Invalid saturation value!');
+    }
+    if (updatedConfigs?.folders?.color && !validateHEXColorCode(updatedConfigs?.folders?.color)) {
+        throw Error('Material Icons: Invalid folder color value!');
     }
 
     try {

src/scripts/helpers/similarity.ts

@@ -1,6 +1,10 @@
-// from here https://stackoverflow.com/a/36566052/6942210
-
-export const similarity = (s1, s2) => {
+/**
+ * Compares two strings and returns the Levenshtein distance
+ * @see https://stackoverflow.com/a/36566052/6942210
+ * @param s1 Text string
+ * @param s2 text string
+ */
+export const similarity = (s1: string, s2: string) => {
     let longer = s1;
     let shorter = s2;
     if (s1.length < s2.length) {
@@ -11,32 +15,33 @@ export const similarity = (s1, s2) => {
     if (longerLength === 0) {
         return 1.0;
     }
-    return (longerLength - editDistance(longer, shorter)) / parseFloat(longerLength);
+    return (longerLength - editDistance(longer, shorter)) / longerLength;
 };
 
-const editDistance = (s1, s2) => {
+const editDistance = (s1: string, s2: string) => {
     s1 = s1.toLowerCase();
     s2 = s2.toLowerCase();
 
-    const costs = new Array();
+    const costs = new Array<number>();
     for (let i = 0; i <= s1.length; i++) {
         let lastValue = i;
         for (let j = 0; j <= s2.length; j++) {
-            if (i === 0)
+            if (i === 0) {
                 costs[j] = j;
-            else {
+            } else {
                 if (j > 0) {
                     let newValue = costs[j - 1];
-                    if (s1.charAt(i - 1) !== s2.charAt(j - 1))
-                        newValue = Math.min(Math.min(newValue, lastValue),
-                            costs[j]) + 1;
+                    if (s1.charAt(i - 1) !== s2.charAt(j - 1)) {
+                        newValue = Math.min(Math.min(newValue, lastValue), costs[j]) + 1;
+                    }
                     costs[j - 1] = lastValue;
                     lastValue = newValue;
                 }
             }
         }
-        if (i > 0)
+        if (i > 0) {
             costs[s2.length] = lastValue;
+        }
     }
     return costs[s2.length];
 };

src/scripts/icons/generateJson.ts

@@ -1,5 +1,5 @@
 /**
- * This file is only a script file that should only be executed by the npm scripts.
+ * This file is meant to be executed exclusively by npm scripts.
  */
 import { createIconFile } from './../../icons/index';