[英]How can I split a large number to 3 groups of numbers using JavaScript?
我有一個像12k4353535352311
這樣的序列12k4353535352311
,我想使用 JavaScript 使其如下所示:
12k4-35353535-2311
我試過這個,但我認為它沒有用
$('#dev_serial').change(function(){
//var serial = $('#dev_serial').val();
var number =$('#dev_serial').val();
output = [],
sNumber = number.toString();
alert(output);
/* Outputs:
*
* [1, 2, 3, 5, 4, 9, 8, 7]
*/
//var series = (''+serial)[1];
});
<script>
var key = "12k4353535352311";
var res = key.substring(0,4)+'-'+key.substring(4,12)+'-'+key.substring(12,16); //This contains 12k4-35353535-2311
</script>
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