search string contains javascript 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: angular string contains
var string = "foo";
var substring = "oo";
console.log(string.indexOf(substring) !== -1);
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)
Example 4: .includes( string
var str = "Hello world, welcome to the universe.";
var n = str.includes("world");
Example 5: javascript includes
const pets = ['cat', 'dog', 'bat'];
console.log(pets.includes('cat'));
// output: true
Example 6: javascript string contains
var string = "foo",
var substring = "oo";
console.log(string.includes(substring));