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)); //truejavascript string includes
'Blue Whale'.includes('blue') // returns falsesearch inside a string javascript
var string = "Hello world!";
var n = string.search("w"); //now n equals 6substring search javascript
string.includes(searchvalue, start)javascript 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)search substring in string javascript
'a nice string'.indexOf('nice') !== -1 //true
'a nice string'.indexOf('nice', 3) !== -1 //false
'a nice string'.indexOf('nice', 2) !== -1 //trueCopyright © 2021 Codeinu
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