javascript replace last occurrence of a letter
String.prototype.replaceLast = function (search, replace) {
return this.replace(new RegExp(search+"([^"+search+"]*)$"), replace+"$1");
}
str = "lala";
newStr = str.replaceLast("l", "m");
console.log(newStr);how to find last occurrence comma in a string and replace with value in javascript
var str = 'a_b_c',
replacement = '!';
console.log( str.replace(/_([^_]*)$/, replacement + '$1') ) //a_b!cCopyright © 2021 Codeinu
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