check for substring javascript
const string = "javascript";
const substring = "script";
console.log(string.includes(substring)); //truecheck for substring 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)); // truestring contains substring javascript
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 check if string contains at the begins with substring
var str = "Hello world, welcome to the universe.";
var n = str.startsWith("Hello");javascript check if string contains a text substring
stringVariable.includes("Your Text");javascript string contains
var string = "foo",
var substring = "oo";
console.log(string.includes(substring));Copyright © 2021 Codeinu
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