Answers for "how to check whether a string contains a substring in a specific pattern javascript?"

check for substring javascript

const string = "javascript";
const substring = "script";

console.log(string.includes(substring));  //true

javascript check if 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)