JAVASCRIPT

javascript replace string

var str = "JavaScript replace method test";
var res = str.replace("test", "success");  
//res = Javscript replace method success

string replace javascript

var string = "golden vigor doers goat";
var replacedString = string.replace("go", "GO");  
console.log(replacedString);

javascript replace

var res = str.replace("find", "replace");

JavaScript Text Replace

let text = "I     love you"
text = text.replace( / +/g, '_') // replace with underscore ('_')

console.log(text) // I_love_you

how to use the replace method in javascript

let string = 'soandso, my name is soandso';

let replaced = string.replace(/soandso/gi, 'Dylan');

console.log(replaced); //Dylan, my name is Dylan

javascript replace

const p = 'dog dog cat rat';
const regex = /dog/gi;

console.log(p.replace(regex, 'cow'));
//if pattern is regular expression all matches will be replaced
//output: "cow cow cat rat"

console.log(p.replace('dog', 'cow'));
// If pattern is a string, only the first occurrence will be replaced.
//output: "cow dog cat rat"

How to Use the replace() String Method in javascript

// use a regex in place of a string as a replacer
const string = "Hello world"

const modified = string.replace(/o/g, "--")

console.log(string)
// Hello world

console.log(modified)
// Hell-- w--rld

replace in javascript

var str = "Please locate where 'locate' occurs!";

str.replace("locate", "W3Schools"); //replace only replace first match from string
str.replace(/LOCATE/i, "W3Schools"); // i makes it case insensitive
str.replace(/LOCATE/g, "W3Schools"); // g replace all matches from string rather than replacing only first

javascript The replace() method

let text = "Please visit Microsoft!";
let newText = text.replace("Microsoft", "W3Schools");

JS replace

// siingle replace
"str".replace('s', 'a') // atr
"str".replace(/s|r/, 'a') //ata

// replace all occurrences
"strstr".replace(/s/, 'a') //atratr

// replace with a function
function replacer(match, p1, p2, p3, offset, string) {
  // p1 is nondigits, p2 digits, and p3 non-alphanumerics
  return [p1, p2, p3].join(' - ');
}
let newString = 'abc12345#$*%'.replace(/([^d]*)(d*)([^w]*)/, replacer);
console.log(newString);  // abc - 12345 - #$*%

javascript string replace

const p = 'Its going to rain today and its going to rain tomorrow';

// Example of replacing all occurrances

// g = global search, which searches all instances
// i = case insensitive, which will match 'a' with 'A'
const regex = /rain/gi;
console.log(p.replace(regex, 'snow'));
// expected output: "Its going to snow today and its going to snow tomorrow"

// Example of replacing the first occurance
console.log(p.replace('rain', 'snow'));
// expected output: "Its going to snow today and its going to rain tomorrow"

string.replace javascript

//Replace the first match in a string
//If you wish to replace all matches, use the replaceAll() method.

var str = "JavaScript replace method test";
var res = str.replace("test", "success");  
//res = Javscript replace method success

javascript replace

var string = "Javascript is fun";
var newString = string.replace("fun", "Awesome");
console.log(newString); // Javascript is Awesome

javascript replace

let str = 'JS will, JS will rock you!';
let newStr = str.replace('JS','JavaScript');

console.log(newStr);
Code language: JavaScript (javascript)

javascript replace

var frase = "Son tres mil trescientos treinta y tres con nueve";
frase = frase.replace("tres","dos");
console.log(frase);
//Son dos mil trescientos treinta y tres con nueve

How to Use the replace() String Method in javascript

const string = "Hello world"

const modified = string.replace("world", "developers")

console.log(string)
// Hello world

console.log(modified)
// Hello developers

javascript replace

var entrada   = "Aprenda Javascript. JavaSCRIPT e Typescript";
var resultado = entrada.replace(/script/gi, "Script");
console.log({entrada, resultado})
/* Valor retornado: 
{
   entrada: 'Aprenda Javascript. JavaSCRIPT e Typescript', 
 resultado: 'Aprenda JavaScript. JavaScript e TypeScript'
}
*/

javascript replace

var text = "Sentence with old text"
alert( text.replace("old text", "new text") ); // Sentence with new text

replace() in javascript

replace(regexp, newSubstr)
replace(regexp, replacerFunction)

replace(substr, newSubstr)
replace(substr, replacerFunction)

using of replace() in Javascript

let str = "I like to eat, eat, eat apples and bananas";
let re = /apples|bananas/gi;

let newStr = str.replace(re, (match) => { 
    console.log({match}); 
    return match.toUpperCase();
});

console.log(newStr);
Code language: JavaScript (javascript)