在按键过程中更改按钮的颜色 [英] Change color of button during keypress
本文介绍了在按键过程中更改按钮的颜色的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
< input type ='button'class ='button'>
当鼠标点击或按下回车键时。
要改变鼠标点击时的颜色,我可以简单地使用下面的css
.button:有效{
背景颜色:#FFF;
}
对于回车键,我尝试了以下jQuery代码:
$ p $
$('。button')。keypress(function(e){
if(e.which == 13){
$(this).css('background-color','#FFF')
}
});
但是这不起作用,现在背景在返回后保持白色。但是,我只希望背景在期间输入时出现白色。
解决方案
使用按键/键盘组合切换颜色:
$(button)。keydown(function(e){//设置键盘关闭时的颜色... if(e.which === 13 ){$(this).css(background-color,red);}}); $(button)。keyup(function(){//当任何键被取消时移除颜色... $(this).css(background-color,));});
< script src =https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js>< / script><按钮> ; Test< / button>
I want to change the color of a
<input type='button' class='button'>
when it is clicked by a mouse or while pressing the enter key.
To change the color when clicked by mouse I can simply use the following css
.button:active{
background-color:#FFF;
}
For the enter key, I tried the following jQuery code:
$('.button').keypress(function(e){
if(e.which == 13){
$(this).css('background-color','#FFF')
}
});
But this doesnt work, now the background remains white after hitting return. However, I only want the background to get white during the time someone hits enter. How can I achive this?
解决方案
Use a combination of keypress/keyup to toggle the color:
$("button").keydown(function(e) {
// Sets the color when the key is down...
if(e.which === 13) {
$(this).css("background-color", "red");
}
});
$("button").keyup(function() {
// Removes the color when any key is lifted...
$(this).css("background-color", "");
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<button>
Test
</button>
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