docs: add comments of workable code

fahimfaisaal · fahimfaisaal · commit cd448cad8b2e · 2022-02-27T12:45:51.000+06:00
diff --git a/String/CheckPangram.js b/String/CheckPangram.js
@@ -9,6 +9,14 @@ const checkPangram = (string) => {
     throw new TypeError('The given value is not a string')
   }
 
+  /**
+   * match all 26 alphabets using regex, with the help of: 
+   * Capturing Group
+   * Character set
+   * Negative lookahead
+   * Dot & star
+   * Numeric reference
+ */
   return string.match(/([a-z])(?!.*\1)/gi).length === 26
 }
 

Original file line number	Diff line number	Diff line change
`@@ -9,6 +9,14 @@ const checkPangram = (string) => {`
`9`	`9`	`throw new TypeError('The given value is not a string')`
`10`	`10`	`}`
`11`	`11`
	`12`	`+ /**`
	`13`	`+ * match all 26 alphabets using regex, with the help of:`
	`14`	`+ * Capturing Group`
	`15`	`+ * Character set`
	`16`	`+ * Negative lookahead`
	`17`	`+ * Dot & star`
	`18`	`+ * Numeric reference`
	`19`	`+ */`
`12`	`20`	`return string.match(/([a-z])(?!.*\1)/gi).length === 26`
`13`	`21`	`}`
`14`	`22`