restrict decimal number only for 2 places

Question

this function is working properly but i dnt wan to round of my number..this function round of my number.

jquery( function() {
    $('.two-digits').keyup(function(){
        if($(this).val().indexOf('.')!=-1){         
            if($(this).val().split(".")[1].length > 2){ 

                if( isNaN( parseFloat( this.value ) ) ) return;
                this.value = parseFloat(this.value).toFixed(2);
            }  
         }            
         return this; //for chaining
    });
});

If the function does something that you don't want, then it is *not* working properly… — Bergi, Jun 05 '14 at 02:17
Have you written this yourself? Do you understand what it does? Where is your problem with fixing the functionality? — Bergi, Jun 05 '14 at 02:18
note that unless you've done something hinky, jQuery is spelled, well like that — adeneo, Jun 05 '14 at 02:18
`return this; //for chaining` is rubbish inside the event handler and can be omitted. — Bergi, Jun 05 '14 at 02:19
@Bergi - oh no, chaining is important, one should always return this and not that. — adeneo, Jun 05 '14 at 02:19
Here's a protip, if you don't want to round the numbers remove the entire code, as that's all it does, round the number to two decimal places. — adeneo, Jun 05 '14 at 02:23

DarkThanos · Answer 1 · 2014-06-05T02:51:47.553

Change a little your code. Remove the .toFixed(2) and add a regular expression to keep only the 2 digits after the punkt.

/(\d+\.\d{2})/i

\d+ this gets the first digits before punkt, \. this is the punkt, \d{2} this only takes 2 digits and by using the () we can get the code on the second index of the array so we get the item [1]. We apply the regular expression with the .match method. More about regular expression here.

So here is the code:

$( function() {
    $('.two-digits').keyup(function(){
        if($(this).val().indexOf('.')!=-1){         
            if($(this).val().split(".")[1].length > 2){
                if( isNaN( parseFloat(this.value.match(/(\d+\.\d{2})/i)[1])) ) return;
                this.value = parseFloat(this.value.match(/(\d+\.\d{2})/i)[1]);
            }  
         }            
         return this;
    });
});

Example: http://jsfiddle.net/A24YA/1/

It would be very helpful for others if you explained why you suggest this solution (and what it does exactly). — Felix Kling, Jun 05 '14 at 02:27

score -1 · Answer 2 · answered Jun 05 '14 at 02:19

-1

You can use this

Math.floor(this.value * 100) / 100

answered Jun 05 '14 at 02:19

Mr.Cocococo

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restrict decimal number only for 2 places

2 Answers2