切换按钮时更改按钮背景颜色 [英] Change button background color on toggle

问题描述

我有一个按钮，我想在单击时将其背景颜色更改为白色，然后当我再次单击时，它又返回其原始背景颜色，我该怎么做? 这是我的代码:

I have a button and i want to change its background color to white on click, and then when i click another time it return back to its original background color, how can i do that? here is my code:

 $(document).ready(function () {
            $("button").click(function () {
    $(this).css("background-color", "#FFF");
                    });
    });

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<button>Hello</button>

推荐答案

您需要做的就是添加某种类型的布尔布尔值，在本例中为名为"white"的变量.

All you need to do is add some sort of toggle boolean, in this example it's the var named 'white'.

var white = false
var bgcolor;
$(document).ready(function () {
    $("button").click(function () {
        if (white = !white) {
            bgcolor = $(this).css('backgroundColor');
            $(this).css("background-color", "#FFF");
        } else {
            $(this).css("background-color", bgcolor);
        }
    });
});

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<button>Hello</button>

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