CODEWITHSUNDEEP
javascriptjquery
TheYaXxE
TheYaXxE

Reputation: 4294

Check if word from one input exist in another

I'm having a little problem, when I want to check if a word from one input, exist in another input.

The first input can only contain one word. When I've typed a word and then hit space, the script should check if the word already exist in the second input. It works fine, except when I'm using a +-sign.

If c++ exist in the second input, and I'm typing c in the first input, and then hit space, it tells that the word already exist, which is incorrect.

I've tried to search to web for a solution, and what I've found was something with regEx and escaping, but it still doesn't seems to work.

This is what I've tried so far:

$word = $('input.word').val();
$check_here = $('input.check-here').val();

function escapeRegExp(string) {
    $regex = '\\b';
    $regex += string.replace(/([.*+?^=!:${}()|\[\]\/\\])/g, "\\$1");
    $regex += '\\b';
    $result = new RegExp($regex, "g");
    return $result;
}

if ( escapeRegExp( $word ).test( $check_here ) ) {
    alert("Word exist");
}
else {
    alert("Word do not exist");
}

Live Fiddle

PS: I've also tried to put $check_here in the escapeRegExp() function, like I've done with $word, but that do not work at all.

A friendly person, who please can tell me whats wrong?

Upvotes: 1

Views: 253

Answers (1)

Gaël Barbin
Gaël Barbin

Reputation: 3919

I do not understand why you want to escape the string.

Your escapeRegExp function (which does not escapes anymore so now called regExp) should be simple like this:

function regExp(string) {
    //this regex will match only if there is the same string in your list. 
    //Only spaces are used as boundaries. 
    return  new RegExp("\s"+string+"\s", "g");
}

As an alternative, you can put all the words in the second input in an array, like in my fiddle:

    var existingWords = $('input#wordList').val().split(/ /);
    if( existingWords.indexOf( word ) >= 0 )

http://jsfiddle.net/gael/a2tr9tud/1/

Upvotes: 2

Related Questions