用户输入数字时,jQuery是否可以添加逗号? [英] Can jQuery add commas while user typing numbers?
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问题描述
当用户输入数字时,如何动态添加逗号?是否有一个好的数字格式化程序会有所帮助?稍后我必须添加这些数字,因此最终必须删除行中的逗号.但是屏幕需要显示逗号以提高可读性.
How would I go about dynamically adding commas as a user is entering numbers? Is there a good number formatter that would help? I have to add these numbers later so I eventually have to remove the commas down the line. But the screen needs to show the commas for better readability.
推荐答案
运行代码段以查看其工作
Run the code snippet to see it work
$('input.number').keyup(function(event) {
// skip for arrow keys
if(event.which >= 37 && event.which <= 40) return;
// format number
$(this).val(function(index, value) {
return value
.replace(/\D/g, "")
.replace(/\B(?=(\d{3})+(?!\d))/g, ",")
;
});
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.0.0/jquery.min.js"></script>
<input class="number">
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