对于用js获取元素的css样式属性(getComputedStyle,currentStyle,style)(getPropertyValue,getAttribute) 首先单独拎出来讲的是style style: nodeObject.style.cssProperty 获取的是DOM节点上 style 属性定义的样式,如果不存在 style 属性,或者 style 属性没有定义相应的样式,则是无法获取的。 也就是说,JavaScript 不会到 ...
1:getPropertyValue必须配合getComputedStyle方法一起使用. 2:getPropertyValue支持W3C标准.但不支持IE浏览器, 3:currentStyle非W3C标准.只支持IE.不能在FF等浏览器下使用. var oStyle = this.currentStyle? this.currentStyle : window.getComputedStyle(this, null); 语法:css_value=window.getComputedStyle.getPropert...
[i]=e.style[i],e.style[i]=t[i];for(i in r=n.call(e),t)e.style[i]=o[i];return r},Fe=new RegExp(ne.join("|"),"i");function Be(e,t,n){var r,i,o,a,s=e.style;return(n=n||Ie(e))&&(""!==(a=n.getPropertyValue(t)||n[t])||ie(e)||(a=S.style(e,t)...
Say you want to fetch the value of a CSS property in a web page, one that is set using a stylesheet. How can you do so?
//获取伪元素的样式 var getPseudoElementStyle = function (sel, pseudo, propertyName) { return window.getComputedStyle(document.querySelector(sel), ':' + (pseudo || 'before')).getPropertyValue(propertyName || 'display'); }; console.log(getPseudoElementStyle('div', 'after', 'content'));...
You can get CSS values in JavaScript through two methods: Thestyleproperty getComputedStyle. Thestyleproperty only retrieves inlined CSS values whilegetComputedStylestyle retrieves computed CSS values. If this lesson has helped you, might enjoyLearn JavaScript, where you’ll learn how to build any...
1. Using thestyle.displayproperty To get thedisplaystyle value from your element, you can select the element you desire using JavaScript selector methods, then access thestyle.displayproperty as follows: <body><h1id="header"style="display:none;">Hello!</h1><script>letheader=document.querySelect...
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element.style.cssText += 'color:red; background-color:yellow'; 我们也可以封装一个公共函数,通过传入一个key-value的对象来给元素设置CSS样式 function css(e, styles) { for (const property in styles) e.style[property] = styles[property]; } 使用css()来设置样式 let content = document.query...
如.window.getComputedStyle(document.querySelector('.test'), ':after').getPropertyValue('left');...