你可以做這樣的事情:
http://jsfiddle.net/ffwAA/4/
此功能適用於字符串,以獲得所需的格式:
function formatCode(str){
var result = str;
str = str.replace(/\D+/g, "");
var m = str.match(/^(\d\d)(?:([2-90]\d|1)(?:(\d\d\d)(\d+)?)?)?$/);
if(m){
result = m[1] + " ";
if(m[2]) result += m[2] + " ";
if(m[3]) result += m[3] + " ";
if(m[4]){
result += m[4].split(/(\d{4})/).join(" ");
result = result.replace(/\s+/g, " ");
}
}
return result;
}
並使用此jQuery來設置它:
function update(obj){
var val = obj.value;
var got = formatCode(val);
if(got != val)
obj.value = got;
}
var timer;
var prev_val = "";
$('#code').keyup(function(){
clearTimeout(timer);
// when adding numbers at the end of input, update at once
// don't want to update when editing in the middle of the string or removing parts of it
// because it would move the carret location to the end of input, and make it unusable
if(this.value.indexOf(prev_val) == 0){
update(this);
prev_val = this.value;
return;
}
prev_val = this.value;
// in other cases update 1 second after the changes are done
timer = setTimeout(update, 1000, this);
});
「我必須檢查第二組,以及當有人輸入例如1,數字必須如下:44 1 444 4444「,這種情況只適用於1嗎? – Qtax