document.getElementById(& quot; someId& quot)).someId [英] document.getElementById("someId") Vs. someId

问题描述

这个问题看似愚蠢，但是使用document.getElementById("someId")Vs访问元素(ID为"someId")之间有什么区别?只需输入someId即可?

This question might seem silly, but what's the difference between accessing an element (with id "someId") using document.getElementById("someId") Vs. just typing someId ?

例如:

document.getElementById("someId").style.top = "12px";

vs

someId.style.top = "12px";

这是示例代码 http://jsfiddle.net/pRaTA/(我发现它没有在Firefox中不能正常工作

Here's a sample code http://jsfiddle.net/pRaTA/ (I found that it doesn't work in firefox)

推荐答案

区别在于，虽然 someId 在某些浏览器中有效，但 document.getElementById("someId")实际上符合W3C标准.

The difference is that while someId works in some browsers, document.getElementById("someId") actually complies with the W3C standard.

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