js .contains code example
Example 1: check if word is in string javascript
var str = "Hello world, welcome to the universe.";
var n = str.includes("world");
Example 2: javascript string contains
var string = "foo",
substring = "oo";
console.log(string.includes(substring));
Example 3: javascript string includes
'Blue Whale'.includes('blue')
Example 4: string contains in javascript
const string = "foo";
const substring = "oo";
console.log(string.includes(substring));
Example 5: javascript contains substring
var str = "We got a poop cleanup on isle 4.";
if(str.indexOf("poop") !== -1){
alert("Not again");
}