javascript 需要用“点”替换“逗号”
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Need to replace "comma" with 'dot'
提问by Sergiu Costas
Please help me to adjust an existing script to replace COMMA with DOT. I use a script which limit the inserting character into Text fields. Only 1,2,3,4,5,6,7,8,9,0 and "." and "," are accepted to be inserted. I would like to have two buttons of inserting DOT - key==188 (comma) and key== 190 (dot).
请帮助我调整现有脚本以用 DOT 替换 COMMA。我使用一个脚本来限制插入字符到文本字段中。只有 1、2、3、4、5、6、7、8、9、0 和“。” 和“，”被接受插入。我想要两个插入 DOT 的按钮 - key==188（逗号）和 key==190（点）。
jQuery.fn.ForceNumericOnly =
function()
{
return this.each(function()
{
$(this).keydown(function(e)
{
var key = e.charCode || e.keyCode || 0;
return (
key == 8 ||
key == 9 ||
key == 46 ||
key == 110 ||
key == 188 ||
key == 190 ||
(key >= 35 && key <= 40) ||
(key >= 48 && key <= 57) ||
(key >= 96 && key <= 105));
});
});
};
$("#iMONEY").ForceNumericOnly();
It can be tested HERE
可以在这里测试
回答by Gaurav Bhor
Just use
只需使用
if(e.keyCode == 188){
e.preventDefault();
$(this).val($(this).val() + '.');
}
Hereyou go. :)
给你。:)
For future references Mini-Tutorial.
供以后参考Mini-Tutorial。
回答by Max Koretskyi
var key = e.charCode || e.keyCode || 0;
// 110 is numpad comma code
if (key === 188 && key === 110) {
e.preventDefault();
$(this).val($(this).val() + '.');
}
回答by Khanh TO
The value of the textbox is updated afterkeypress event is fired. It's not a place to replace comma with dot. Use keyup event instead:
触发 keypress 事件后，文本框的值会更新。这不是用点替换逗号的地方。改用 keyup 事件：
jQuery.fn.ForceNumericOnly =
function()
{
this.keyup(function(e)
{
// console.log("Change");
$(this).val($(this).val().replace(/,/g,"."));
});
};
$("#iMONEY").ForceNumericOnly();
回答by Dawood Awan
You need to use the Replace method
您需要使用 Replace 方法
var someVariable = "1,2,3,4,5,6,7,8,9,0";
$mylabel.text( someVariable.replace(',', '.') );
EDIT:If you are checking from TextBox then do it like this:
编辑：如果您是从 TextBox 进行检查，那么请这样做：
if(Key == 188){
var someVariable = $("#TEXTBOXID").val();
somVariable = someVariable.replace(',', '.');
}
