jquery validation string contains exact substring

Question

The text validation in jquery, String contains exact substring not partial. Ex: Input String : Hello World Sub String : Hello There are validation in like str.indexof(SubString) >-1 or /SubString/.test(str) If some one enters He in the input text box it validates the above condition where it should validate exact string "Hello" not for He. How to do this. Your suggestion will be highly appreciated.

/Hello/.test(Hello World) - correct validation as Hello World

/Hello/.test(He..) - It should n't validate, Where it validates for He llo in He..

 setValidation: function(){
 $.validator.addMethod("no_Hello_word", function(value) {
              return /hello/.test(value) || /HELLO/.test(value);
          }, "Text mustn't contain word hello/HELLO");
}

use word boundaries..

Avinash Raj
– Avinash Raj

2014-08-29 03:37:08 +00:00
Commented Aug 29, 2014 at 3:37 — Avinash Raj
– Avinash Raj, Commented Aug 29, 2014 at 3:37

Rick Su · Accepted Answer · 2014-08-29 03:51:22Z

1

try

return !/hello/i.test(value) || /Hello/.test(value)

edited Aug 29, 2014 at 3:51

answered Aug 29, 2014 at 3:36

Rick Su

16.5k3 gold badges35 silver badges51 bronze badges

Sign up to request clarification or add additional context in comments.

Comments

SivaDotRender · Accepted Answer · 2014-08-29 04:27:17Z

0

why don't you do it like this? This should not validate if the user puts in "he"

var string= "hello, world";
var string_array= string.toLowerCase().split(" ");

if (string_array.indexOf("hello") >= 0){
    return true;
} else {
    return false;
}

edited Aug 29, 2014 at 4:27

answered Aug 29, 2014 at 4:07

SivaDotRender

1,6614 gold badges23 silver badges40 bronze badges

1 Comment

Anil Over a year ago

it neither check for exact word.instead hello if you put he and check indexof it will return same index i.e it just checks the index matched letter.

rogelio · Accepted Answer · 2014-08-29 04:41:02Z

0

what about this: split the string by spaces and then search in the array the word:

var exactSearch = function(word, string){
    var words = string.split(" ");

    for(i = 0; i < words.length; i++){
        if(word == words[i]){
            return true;
        }
    }
    return false;
}

See the working example here

UPDATE

I think I write the answer before you edit the question.

Maybe it works for you:

$.validator.addMethod("no_Hello_word", function(value, element) {
    return (value.toLowerCase && (value.toLowerCase() === "hello"));
},
    "Text mustn't contain word hello/HELLO!"
);

edited Aug 29, 2014 at 4:41

answered Aug 29, 2014 at 4:32

rogelio

1,55915 silver badges19 bronze badges

Comments

Mrchief · Accepted Answer · 2014-08-29 04:41:09Z

0

Try this:

function isValid(str){ 
    return !/[hH]ello/.test(str); 
}

// isValid('Hello') -> false
// isValid('Hello World') -> false
// isValid('He') -> true

You can flip this if you want the validation to be other way round.

answered Aug 29, 2014 at 4:41

Mrchief

76.4k20 gold badges145 silver badges193 bronze badges

Comments

Anil · Accepted Answer · 2014-09-02 05:30:16Z

0

$.validator.addMethod("helloworld_word", function(value,element) {
              return /^((?!helloworld).)*$/i.test(value);
 }, "No Hello world");

answered Sep 2, 2014 at 5:30

Anil

1,4886 gold badges25 silver badges35 bronze badges

Collectives™ on Stack Overflow

jquery validation string contains exact substring

5 Answers 5

Comments

1 Comment

Comments

Comments

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

5 Answers 5

Comments

1 Comment

Comments

Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Related