javascript replaceall regex code example

Example 1: js replace characters in a string

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

Example 2: string replace javascript

let re = /apples/gi; 
let str = "Apples are round, and apples are juicy.";
let newstr = str.replace(re, "oranges"); 
console.log(newstr)

output:

"oranges are round, and oranges are juicy."

Example 3: replace javascript

// Replace with no modifiers
let newText = startText.replace("yes", "no")
console.log(newText)  // "Yes, I said no, it is, yes."

// Replace with 'g'-global modifier
newText = startText.replace(/yes/g, "no")
console.log(newText)  // "Yes, I said no, it is, no."

// Replace with modifiers 'g'-global and 'i'-case insensitive
newText = startText.replace(/yes/gi, "no")
console.log(newText)  // "no, I said no, it is, no."