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const newUsers = [];
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javascript澶嶅埗
const newUsers = users.map(user => ({
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)

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javascript澶嶅埗
const report = orders.reduce((acc, order) => {
  acc.total += order.price * order.count
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javascript澶嶅埗
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杩欎咯鍏勫紵灏卞儚鑰冨満鐩戣€冿細

• every锛氬叏鐝兘鍙婃牸鎵嶇畻閫氳繃
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javascript澶嶅埗
// 浼犵粺鍐欐硶
let target = null
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javascript澶嶅埗
// 瀹夊叏鍚堝苟锛堢敓鎴愭柊鏁扮粍锛?/span>
const allData = [...arr1, ...arr2, ...arr3]
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javascript澶嶅埗
const divList = Array.from(document.querySelectorAll('div'))
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divList.filter(div => div.className.includes('active'))

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