JAVASCRIPT

replacing characters in string javascript

var myStr = 'this,is,a,test';
var newStr = myStr.replace(/,/g, '-');

console.log( newStr );  // "this-is-a-test"

js replace characters in a string

var str = "Original string!";
var str = str.replace("Original", "New");

replace character inside a string in JavaScript

 function strReplace(){
        var myStr = 'quick_brown_fox';
        var newStr = myStr.replace(/_/g, "-");
        
        // Insert modified string in paragraph
        document.getElementById("myText").innerHTML = newStr;
    }