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

If you are looking for exact words and don't want it to match things like "nightmare" (which is probably what you need), you can use a regex:

/\bare\b/gi

\b = word boundary
g = global
i = case insensitive (if needed)

If you just want to find the characters "are", then use indexOf.

If you want to match arbitrary words, you have to programatically construct a RegExp (regular expression) object itself based on the word string and use test.