返回所有的DOM元素的阵列，通过深度排序 [英] Return an array of all the DOM elements, sorted by depth
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问题描述
在Javascript中如何创建DOM中的所有元素，其深度有序的数组，所以这样的事情...
In Javascript How do you create an Array of all the elements in the DOM, ordered by their depth, so it something like this...
<body>
<1stChild>
<1stGrandchild>
<2ndChild>
<3rdChild>
<2ndGrandchild>
<3rdGrandchild>
<1stGreatgrandchild>
<2stGreatgrandchild>
<4thGrandchild>
<4thChild>
<etc etc>
是这样的...
would look like this...
["body", "1stChild", "2ndChild", "...", "lastChild", "1stGrandchild", "...", "lastGrandchild", "1stGreatgrandchild", "...", "lastGreatgrandchild" "etc. etc."]
我有一个jQuery 解决方案但想一个纯JavaScript有一个
I have a jQuery solution but would like a pure javascript one
推荐答案
好吧，我理解了它自己，它是pretty到底简单。
Ok, I figured it out myself, it was pretty simple in the end.
// Every Element in the DOM.
var allElements = document.getElementsByTagName('*'),
// All the Element's children sorted by depth,
// ie. body, then body's children, grandchildren,
// so on and so forth.
sortedByDepth = [];
// for every element
for(var i = 0; i<allElements.length; ++i) {
// grab Its children
var allChildren = allElements[i].children;
// for every grabbed child
for(var j = 0; j<allChildren.length; ++j){
// Add it to the sortedByDepth array
sortedByDepth = sortedByDepth.concat(allChildren[j]);
}
}
console.log(sortedByDepth);
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