Jquery check if special char exists in text value

Question

i need to check if a textarea contains some special characters, so i need to count them 2 (SMS lenght).

I wrote this piece of code but seems that it doesn't find no special chars, also if write only "€€€"

Could you please help me? Also if you would to rewrite directly function, without problem. Thank tou!

var SPECIAL_CHARS = Array('€', '%'); function charUsed() { var count = $('#text').val().length; var chars = $('#text').val().split(""); var numberOfSpecialChars = 0; if ($.inArray(chars, SPECIAL_CHARS) > -1) { numberOfSpecialChars++; } return count + numberOfSpecialChars; } // function

sorry to ask, but if you check for existance of any special-char, why not use regex? — Vogel612
– Vogel612, Commented Sep 3, 2013 at 15:23
@Andrew Whitaker Solved with for (var k=0; k<chars.length; k++) { if ($.inArray(chars[k], SPECIAL_CHARS) > -1) { numberOfSpecialChars++; } } — sineverba
– sineverba, Commented Sep 3, 2013 at 15:39
@sineverba if you like your solution, post it as answer and accept it. — Denys Séguret
– Denys Séguret, Commented Sep 3, 2013 at 15:39

Daniel · Accepted Answer · 2013-09-03 15:52:07Z

3

http://jsfiddle.net/KSm7J/

var chars = $('#text').val().match(/[€%]/g).length; alert(chars);

answered Sep 3, 2013 at 15:52

Daniel

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1 Comment

Denys Séguret Over a year ago

Damn... this is simpler than mine... +1

Denys Séguret · Accepted Answer · 2013-09-03 15:33:32Z

A rewrite :

var nbSpecialChars = $('#text').val().split(/[€%]/).length - 1;

The idea is to make an array of strings, using your special characters as separator :

'some € chars %' => ["some ", " chars ", ""]

and then use the length of this array to deduce the count of those chars. There are many other (faster) solutions but this one is short.

aaaand he understands what you did.... not... please be so kind to illuminate your answer, and what you did to OP

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