在javascript中调用onkeyup事件的函数进行输入屏蔽
[英]calling a function for onkeyup event in javascript for input masking
问题描述
I have a html code which will do the input masking for the date entry which is given below 
我有一个html代码，它将为下面给出的日期输入做输入屏蔽
<html>
<input
type="text"
name="date"
placeholder="dd/mm/yyyy"
onkeyup="
var v = this.value;
if (v.match(/^\d{2}$/) !== null) {
this.value = v + '/';
}
else if (v.match(/^\d{2}\/\d{2}$/) !== null) {
this.value = v + '/';
}
"
maxlength="10"
>
</html>
It takes the input in the specified format and this is working fine,, but I wanted to call this as a function and I tried this 它以指定的格式接受输入，并且工作正常，但是我想将此作为函数调用，并且尝试了
<br><script type="text/javascript">
function check(t){
var v = t;
if (v.match(/^\d{2}$/) !== null) {
t = v + '/';
return;
}
else if (v.match(/^\d{2}\/\d{2}$/) !== null) {
t = v + '/';
return;
}
}
</script>
<html>
<input
type="text"
name="date" style="text-transform: uppercase";
placeholder="dd/mm/yyyy"
onkeyup="check(this.value);"
maxlength="8"
>
</html>
but i didn't get the required result. 但我没有得到所需的结果。 it is taking the value as ,say 11111111 where it should have taken 11/11/1111 它采用的值是，例如11111111，应该采用11/11/1111的值
What may be wrong here? 这有什么问题吗？
1 个解决方案
解决方案1
3 已采纳 2013-11-20 14:56:51
You have to give like this , If you want to reflect the changes into textbox 如果要将更改反映到文本框中，则必须这样给
function check(t){
var v = t;
if (v.match(/^\d{2}$/) !== null) {
t = v + '/';
document.getElementById("t1").value=t;
return ;
}
else if (v.match(/^\d{2}\/\d{2}$/) !== null) {
t = v + '/';
document.getElementById("t1").value=t;
return ;
}
}
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