Remove all characters from string javascript

Question

$('.hourfield').focusout(function() {

    var h;
    var m;
    var timeStr = "";
    var time = "";
    var newFormat = "";

    timeStr = $(this).val();

    //Here I would like to remove all characters which isn't numbers
    timeStr = timeStr.replace("/[^0-9\.]+/g","");

    if(timeStr > 0) {

        h = timeStr.substr(0,2);
        m = timeStr.substr(2,2);

        newFormat = h+':'+m;

        //Add new values
        $(this).val(newFormat);
    }

});

URL to website

The regex you wrote, "/[^0-9\.]+/g". You wanted it to be a regex, but you ended up with a string. Lose the quotes and you'll be fine. — wsdookadr
– wsdookadr, Commented Mar 19, 2013 at 14:41
The replace() function doesn't seem to remove the characters if you for example insert "10.00" in the input field. I would like it to remove the dot before reformatting it with the "10:00". — Jonas Lampe
– Jonas Lampe, Commented Mar 19, 2013 at 14:41
I've just updated the the code with your suggestion and if you write "10.00" and then click somewhere else you get "10:.0". It should generate "10:00". — Jonas Lampe
– Jonas Lampe, Commented Mar 19, 2013 at 14:47

Tim Rogers · Accepted Answer · 2013-03-19 14:40:04Z

3

You've specified a string to replace by enclosing the regex in quotes. Remove the quotes to specify a Regex.

timeStr = timeStr.replace(/[^0-9\.]+/g,"");

answered Mar 19, 2013 at 14:40

Tim Rogers

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Jonas Lampe · Accepted Answer · 2013-03-20 07:39:49Z

0

$('.hourfield').focusout(function() {

    var h;
    var m;
    var timeStr = "";
    var CleanTimeStr = "";
    var newFormat = "";

    timeStr = $(this).val();

I did some minor changes to the replace() rule and just removed the "dots" which was the main purpose

    CleanTimeStr = timeStr.replace(/[.]+/g,"");

    if(CleanTimeStr > 0) {

        h = CleanTimeStr.substr(0,2);
        m = CleanTimeStr.substr(2,2);

        newFormat = h+':'+m;

        //Add new values
        $(this).val(newFormat);
    }
});

So now it works fine, thanks!

answered Mar 20, 2013 at 7:39

Jonas Lampe

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