Question

我在互联网上发现了以下 j,但我很快发现,这部法律存在缺陷,因为它不接受一个小点(第46条),尽管该法典似乎允许这样做。

目前,我不能像1.23一样进入价格,因为这一时期被忽略,而我却获得123。

没有人会担心这种情况没有奏效?

// Numeric only control handler
$.fn.ForceNumericOnly =
function()
{
    return this.each(function()
    {
        $(this).keydown(function(e)
        {
            var key = e.charCode || e.keyCode || 0;

            // allow backspace, tab, delete, arrows, numbers and keypad numbers ONLY
            return (
                key == 8 ||
                key == 9 ||
                key == 46 ||
                (key >= 37 && key <= 40) ||
                (key >= 48 && key <= 57) ||
                (key >= 96 && key <= 105));
        })
    })
};

我正在使用这样的花 the:

$(function(){
  $( #price_field ).ForceNumericOnly();
});

Answer 1

Just add the . (code 190 and 110) to the checks:

// Numeric only control handler
$.fn.ForceNumericOnly =
function()
{
    return this.each(function()
    {
        $(this).keydown(function(e)
        {
            var key = e.charCode || e.keyCode || 0;

            // allow backspace, tab, delete, arrows, numbers and keypad numbers ONLY
            return (
                key == 8 ||
                key == 9 ||
                key == 46 ||
                key == 190 ||   // normal .
                key == 110 ||   // keypad .
                (key >= 37 && key <= 40) ||
                (key >= 48 && key <= 57) ||
                (key >= 96 && key <= 105));
        })
    })
};

Answer 2

其他用户已经回答了你的问题,但我要向你提供这一联系。

rel=“nofollow”http://unixpapa.com/js/key.html

我认为,在处理关键事件并使其相互兼容时非常有用。

我希望这一帮助。

Answer 3

您应加上第190号关键法典,接受“......”。

// Numeric only control handler
$.fn.ForceNumericOnly = function() {
return this.each(function()
{
    $(this).keydown(function(e)
    {
        var key = e.charCode || e.keyCode || 0;

        // allow dot, backspace, tab, delete, arrows, numbers and keypad numbers ONLY
        return (
            key == 190 ||  
            key == 8 ||
            key == 9 ||
            key == 46 ||
            (key >= 37 && key <= 40) ||
            (key >= 48 && key <= 57) ||
            (key >= 96 && key <= 105));
    })
})
};

Answer 4

You need to include 190 and 110 for both decimal points.

Answer 5

// Numeric only control handler
$.fn.ForceNumericOnly =
function()
{
    return this.each(function()
    {
        $(this).keydown(function(e)
        {
            var key = e.charCode || e.keyCode || 0;

            // allow backspace, tab, delete, arrows, numbers and keypad numbers ONLY
            return (
                key == 190 ||    //add this line. 190 is the keycode for a period
                key == 110 ||    //and this line. 110 is the keycode for a decimal
                key == 8 ||
                key == 9 ||
                key == 46 ||
                (key >= 37 && key <= 40) ||
                (key >= 48 && key <= 57) ||
                (key >= 96 && key <= 105));
        })
    })
};

友情链接