merge: cache repeated function calls (TheAlgorithms#962)

fahimfaisaal · web-flow · commit 7d57f7f1a79b · 2022-03-28T22:19:29.000+05:30
diff --git a/Ciphers/Atbash.js b/Ciphers/Atbash.js
@@ -11,11 +11,13 @@ const Atbash = (str) => {
   }
 
   return str.replace(/[a-z]/gi, (char) => {
+    const charCode = char.charCodeAt()
+
     if (/[A-Z]/.test(char)) {
-      return String.fromCharCode(90 + 65 - char.charCodeAt())
+      return String.fromCharCode(90 + 65 - charCode)
     }
 
-    return String.fromCharCode(122 + 97 - char.charCodeAt())
+    return String.fromCharCode(122 + 97 - charCode)
   })
 }
 

Original file line number	Diff line number	Diff line change
`@@ -11,11 +11,13 @@ const Atbash = (str) => {`
`11`	`11`	`}`
`12`	`12`
`13`	`13`	`return str.replace(/[a-z]/gi, (char) => {`
	`14`	`+ const charCode = char.charCodeAt()`
	`15`	`+`
`14`	`16`	`if (/[A-Z]/.test(char)) {`
`15`		`- return String.fromCharCode(90 + 65 - char.charCodeAt())`
	`17`	`+ return String.fromCharCode(90 + 65 - charCode)`
`16`	`18`	`}`
`17`	`19`
`18`		`- return String.fromCharCode(122 + 97 - char.charCodeAt())`
	`20`	`+ return String.fromCharCode(122 + 97 - charCode)`
`19`	`21`	`})`
`20`	`22`	`}`
`21`	`23`