我在互联网上找到了以下jQuery代码,但我很快发现它有一个缺点,即它不接受小数点(ascii代码46) - 即使代码似乎允许它。
目前,我无法输入1.23之类的价格,因为这段时间被忽略了,我得到了123.
有人能发现这不起作用吗?
// 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));
})
})
};
我正在使用这样的插件:
$(function(){
$('#price_field').ForceNumericOnly();
});
答案 0 :(得分:1)
答案 1 :(得分:0)
您应该添加密钥代码190以接受“。”
// 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));
})
})
};
答案 2 :(得分:0)
两个小数点都需要包含190和110.
答案 3 :(得分:0)
// 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));
})
})
};
答案 4 :(得分:0)
只需将.
(代码190和110)添加到支票:
// 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));
})
})
};