if string contains 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 contains

var string = "foo",
    substring = "oo";

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

Example 3: string contains in javascript

const string = "foo";
const substring = "oo";

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

Example 4: angular string contains

var string = "foo";
var substring = "oo";

console.log(string.indexOf(substring) !== -1);

Example 5: .includes( string

var str = "Hello world, welcome to the universe.";
var n = str.includes("world");

Example 6: javascript string contains

var string = "foo",
var substring = "oo";

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