我正在用jQuery改变CSS，我希望删除我根据输入值添加的样式:
if(color != '000000') $("body").css("background-color", color); else // remove style ?
我该怎么做呢? 请注意，每当使用颜色选择器选择颜色时，上面的行就会运行。当鼠标移动到一个色轮上时)。
第二注意:我不能这样做与css("background-color"， "none")，因为它将删除默认样式从css文件。 我只是想删除jQuery添加的背景色内联样式。
当前回答
你可以使用
removeAttr('style');
其他回答
只是用:
$('.tag-class').removeAttr('style');
or
$('#tag-id').removeAttr('style');
这两个jQuery函数都可以工作:
$("#element").removeAttr("style");
$("#element").removeAttr("background-color")
let el = document.querySelector(element)
let styles = el.getAttribute('style')
el.setAttribute('style', styles.replace('width: 100%', ''))
将属性更改为空字符串似乎可以完成工作:
$.css("background-color", "");
这比其他一些解决方案更复杂，但可能在场景中提供更大的灵活性:
1)做一个类定义来隔离(封装)你想要有选择地应用/删除的样式。它可以是空的(对于这种情况，可能应该是空的):
.myColor {}
2)使用以下代码，基于gilly3的回答http://jsfiddle.net/kdp5V/167/:
function changeCSSRule(styleSelector,property,value) {
for (var ssIdx = 0; ssIdx < document.styleSheets.length; ssIdx++) {
var ss = document.styleSheets[ssIdx];
var rules = ss.cssRules || ss.rules;
if(rules){
for (var ruleIdx = 0; ruleIdx < rules.length; ruleIdx++) {
var rule = rules[ruleIdx];
if (rule.selectorText == styleSelector) {
if(typeof value == 'undefined' || !value){
rule.style.removeProperty(property);
} else {
rule.style.setProperty(property,value);
}
return; // stops at FIRST occurrence of this styleSelector
}
}
}
}
}
使用示例:http://jsfiddle.net/qvkwhtow/
警告:
Not extensively tested. Can't include !important or other directives in the new value. Any such existing directives will be lost through this manipulation. Only changes first found occurrence of a styleSelector. Doesn't add or remove entire styles, but this could be done with something more elaborate. Any invalid/unusable values will be ignored or throw error. In Chrome (at least), non-local (as in cross-site) CSS rules are not exposed through document.styleSheets object, so this won't work on them. One would have to add a local overrides and manipulate that, keeping in mind the "first found" behavior of this code. document.styleSheets is not particularly friendly to manipulation in general, don't expect this to work for aggressive use.
以这种方式隔离样式就是CSS的全部，即使操纵它不是。操纵CSS规则不是jQuery的全部，jQuery操纵DOM元素，并使用CSS选择器来完成它。
