Using .match() for case insensitive words

Question

Currently I need to match the user input with an existing value and I have used,

 return book.id.match(keyword);

Now I need to make the keyword match to case insensitive where Bookt and BOOkT should also match for example. I tried using a regex but it is not letting me pass the 'keyword' variable to the regex. Any idea how to do this simply?

Answer 1

You can use match with regex as parameters.

var string = "BoOkt";
var result = string.match(/bookt/i);

if (result){
    alert('match');
}

alternate version from using regex is indexOf . If you have contain regex metacharacters from your user input and using match will be another problem for you.

var match = 'awesome';
var string = 'stackoverflow is AweSoMe place';

if (string.toLowerCase().indexOf(match) != -1){
    alert('match')
}