window.jQuery = (selector) => {
let nodes = {};
if (typeof selector === 'string') {
//是字符串
let temp = document.querySelectorAll(selector);
for (let i = 0; i < temp.length; i++) {
nodes[i] = temp[i]
}
nodes.length = temp.length;
} else if (selector instanceof Node) {
//直接是个Node节点
nodes = {
0: selector,
length: 1
}
}
nodes.addClass = (classList) => {
classList.forEach(klass => {
for (let i = 0; i < nodes.length; i++) {
nodes[i].classList.add(klass)
}
});
}
nodes.setText = (text) => {
for (let i = 0; i < nodes.length; i++) {
nodes[i].textContent = text
}
} return nodes;
} window.$ = jQuery