如何计算按键时间 [英] how to calculate the time keydown to keyup
问题描述
这是代码，但不起作用，哪里有问题.
this is the code, but it's not work,where is wrong.
<input type="text" name ="name" place="">
<button disabled="disabled">click</button>
<script>
$(function(){
var i = 0;
$('input').keydown(function(event) {
i++;
var temp = i;
setTimeout(function(){
var rate = (i-temp);
console.log(rate);
if(rate--){
$('button').attr('disabled',true);
}else{
$('button').attr('disabled',false);
}
},1000)
});
});
<input type="text" name ="name" place="">
<button disabled="disabled">click</button>
<script>
$(function(){
var i = 0;
$('input').keydown(function(event) {
i++;
var temp = i;
setTimeout(function(){
var rate = (i-temp);
console.log(rate);
if(rate--){
$('button').attr('disabled',true);
}else{
$('button').attr('disabled',false);
}
},1000)
});
});
非常感谢你们
推荐答案
计算击键和击键之间的时间:
Calculate time between keydown and keyup:
timebetween = 0;
var count = null;
$("input").keydown(function(){
timebetween = 0;
count = setInterval(function(){
timebetween++;
}, 1);
});
$("input").keyup(function(){
clearInterval(count);
$("body").append("<br>Time between keydown and keyup is "+timebetween+"ms");
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<input type="text">
这篇关于如何计算按键时间的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
