HTML5输入颜色的默认颜色 [英] HTML5 input color's default color

问题描述

input type =color的默认颜色为黑色：＃000000 。

即使我给它一个空值...

< input type = colorvalue =/>

...默认颜色总是黑色。

我想让用户有选择颜色的选择，但如果他不是这意味着没有选择颜色，甚至不是白色 #FFFFFF 。

有没有办法强制输入类型=颜色不使用黑色作为默认值？

我可以使用某种监听器来检查用户是否首次更改颜色，如果没有，则忽略该值，但我想避免JavaScript。

解决方案

在 value c $ c>< input type =color> ，我注意到的一件事是它必须是六位数，如果你使用 #fff ，它不工作。它必须 #ffffff 。

通过javascript设置时也会发生同样的情况。
document.querySelector（'input [type =color]'）。value ='#fff'颜色保持黑色。
你必须使用 document.querySelector（'input [type =color]'）。value ='#ffffff' p>

需要注意的事情。

The input type="color" has a default color which is black: #000000.

Even if I give it an empty value...

<input type="color" value="" />

...the default color is always black.

I want the user to have the option of picking a color, but if he doesn't it means no color was picked, not even white #FFFFFF.

Is there a way to force an input type="color" not to have black color as default?

I can use some kind of a "listener" to check if the user changed the color for the first time, if not, ignore the value, but I would like to avoid Javascript.

解决方案

While using hexcode for value attribute in <input type="color">, one thing I noticed is that it has to be six digits, if for white you use #fff, it does not work. It has to be #ffffff.

The same thing happens when setting it through javascript. document.querySelector('input[type="color"]').value = '#fff' does not work. The color remains black. You have to use document.querySelector('input[type="color"]').value = '#ffffff' for it to work.

Something to be careful about.

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