Fix slug punctuation

CHANGELOG.md

@@ -1,5 +1,11 @@
 # Change Log
 
+## [5.x.x] - 2021-xx-xx
+
+### 🐞 Fixes
+
+- Value check when generating slug from title
+
 ## [5.2.0] - 2021-10-19
 
 ### 🎨 Enhancements

src/helpers/ArticleHelper.ts

@@ -251,7 +251,6 @@ export class ArticleHelper {
       const items = [{ 
         title: "Check file", 
         action: async () => {
-          console.log(fileName);
           await EditorHelper.showFile(fileName)
         } 
       }];

src/helpers/SlugHelper.ts

@@ -14,14 +14,18 @@ export class SlugHelper {
 
     // Remove punctuation from input string, and split it into words.
     let cleanTitle = this.removePunctuation(articleTitle);
-    cleanTitle = cleanTitle.toLowerCase();
-    // Split into words
-    let words = cleanTitle.split(/\s/);
-    // Removing stop words
-    words = this.removeStopWords(words);
-    cleanTitle = words.join("-");
-    cleanTitle = this.replaceCharacters(cleanTitle);
-    return cleanTitle;
+    if (cleanTitle) {
+      cleanTitle = cleanTitle.toLowerCase();
+      // Split into words
+      let words = cleanTitle.split(/\s/);
+      // Removing stop words
+      words = this.removeStopWords(words);
+      cleanTitle = words.join("-");
+      cleanTitle = this.replaceCharacters(cleanTitle);
+      return cleanTitle;
+    }
+
+    return null;
   }
 
   /**
@@ -30,6 +34,10 @@ export class SlugHelper {
    * @param value 
    */
   private static removePunctuation(value: string): string {
+    if (typeof value !== "string") {
+      return "";
+    }
+
     const punctuationless = value?.replace(/[\.,-\/#!$@%\^&\*;:{}=\-_`'"~()+\?<>]/g, " ");
     // Remove double spaces
     return punctuationless?.replace(/\s{2,}/g," ");