check if string contains a substring in JavaScript?
const string = "javascript";
const substring = "script";
console.log(string.includes(substring)); //truecheck if string contains a substring in JavaScript?
const string = "javascript";
const substring = "script";
console.log(string.includes(substring)); //truecheck if string contains a substring in JavaScript?'
let String = "codegrepper";
let Sub = "grepper";
console.log(String.includes(Sub)); // truejavascript string contains substring
var str = "We got a poop cleanup on isle 4.";
if(str.indexOf("poop") !== -1){
alert("Not again");
}
//use indexOf (it returns position of substring or -1 if not found)javascript includes
const pets = ['cat', 'dog', 'bat'];
console.log(pets.includes('cat'));
// output: true.includes( string
var str = "Hello world, welcome to the universe.";
var n = str.includes("world");javascript check if string contains at the begins with substring
var str = "Hello world, welcome to the universe.";
var n = str.startsWith("Hello");Copyright © 2021 Codeinu
Forgot your account's password or having trouble logging into your Account? Don't worry, we'll help you to get back your account. Enter your email address and we'll send you a recovery link to reset your password. If you are experiencing problems resetting your password contact us
