how to check if a string contains something in javascript code example
Example 1: check if string contains javascript
var str = "Hello world, welcome to the universe.";
var n = str.includes("world");
Example 2: javascript string includes
'Blue Whale'.includes('blue') // returns false
Example 3: 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)