我试图通过在此函数中传递类名来查找页面中的所有元素,我将所有元素作为数组对象获取,但我只需要那些仅具有className的元素。
var custSearch = function (element, className) {
var elementsArray = [];
// add spaces
var q = ' ' + className + ' ';
(function recFind (node) {
// Looping through all the child nodes
for (var i = 0; i < node.childNodes.length; i++) {
var currentNode = node.childNodes[i];
var currentClass = currentNode.className;
// check if current class match with param class
if ((' '+currentClass+' ').indexOf(q)) {
elementsArray.push(currentNode);
}
currentNode.childNodes && recFind(currentNode);
}
})(element);
return elementsArray;
};
custSearch(document, 'spch');
我不想使用getElementsByClassName函数,但我想要类似的结果,上面这个函数应该给我确切的结果但是我找不到我做错了什么,有人可以告诉我是否有任何逻辑错误?
HTML就像这样
<div class="spch s2fp-h" style="display:none" id="spch"><div class="spchc" id="spchc"><div class="_o3"><div class="_AM"><span class="_CMb" id="spchl"></span><span class="button" id="spchb"><div class="_wPb"><span class="_AUb"></span><div class="_Fjd"><span class="_oXb"></span><span class="_dWb"></span></div></div></span></div><div class="_gjb"><span class="spcht" id="spchi" style="color:#777"></span><span class="spcht" id="spchf" style="color:#000"></span></div><div class="google-logo"></div></div><div class="_ypc"><div class="_zpc"></div></div></div><div class="close-button" id="spchx">×</div></div>
答案 0 :(得分:0)
尝试以下方法:
function myGetElementsByClassName(className) {
var nodes = document.getElementsByTagName('*');
var out = [];
for( var i=0, len=nodes.length; i<len; i++) {
if( nodes[i].classList.contains( className ) ) {
out.push( nodes[i] );
}
}
return out;
}