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

you can use indexOf for this

var a = 'how are you';
if (a.indexOf('are') > -1) {
  return true;
} else {
  return false;
}

Edit: This is an old answer that keeps getting up votes every once in a while so I thought I should clarify that in the above code, the if clause is not required at all because the expression itself is a boolean. Here is a better version of it which you should use,

var a = 'how are you';
return a.indexOf('are') > -1;

Update in ECMAScript2016:

var a = 'how are you';
return a.includes('are');  //true