JavaScript/jQuery - How to check if a string contain specific words

Question

$a = \'how are you\';
if (strpos($a,\'are\') !== false) {
    echo \'true\';
}

In PHP, we can use the code above to check if a string contain speci

Answer 1

In javascript the includes() method can be used to determines whether a string contains particular word (or characters at specified position). Its case sensitive.

var str = "Hello there."; 

var check1 = str.includes("there"); //true
var check2 = str.includes("There"); //false, the method is case sensitive
var check3 = str.includes("her");   //true
var check4 = str.includes("o",4);   //true, o is at position 4 (start at 0)
var check5 = str.includes("o",6);   //false o is not at position 6