function buildFragment(elems, context) { var fragment = context.createDocumentFragment(),
nodes = [],
i = 0, elem,
l = elems.length; for (; i < l; i++) { elem = elems[i];
//創(chuàng)一個元素div做為容器
tmp = fragment.appendChild(context.createElement("div"));
//放到文檔碎片中
tmp.innerHTML = elem;
} return fragment;
}創(chuàng)建文檔片段的時候不都是用document.createDocumentFragment()嗎?這里用個context參數(shù)是什么意思?
模擬JQ源碼中的這段代碼里的context是什么意思?
慕容708150
2018-10-19 09:12:12