JavaScript鏁扮粍鏄敤浜庡瓨鍌ㄥ涓€肩殑鍙橀噺銆傚湪JavaScript涓紝鏁扮粍鏄姩鎬佺殑锛屽彲浠ユ牴鎹渶瑕侀殢鏃舵坊鍔犮€佷慨鏀规垨鍒犻櫎鏁扮粍涓殑鍏冪礌銆?/p>

鍒涘缓鏁扮粍鐨勬柟寮忔湁澶氱锛屼互涓嬫槸涓€浜涘父瑙佺殑鏂规硶锛?/p>

1. 浣跨敤鏁扮粍瀛楅潰閲忥紙[]锛夊垱寤虹┖鏁扮粍锛?/li>

let arr = [];

2. 浣跨敤鏁扮粍瀛楅潰閲忓垱寤哄甫鏈夊垵濮嬪€肩殑鏁扮粍锛?/li>

let arr = [1, 2, 3];

3. 浣跨敤new Array()鍏抽敭瀛楀垱寤虹┖鏁扮粍锛?/li>

let arr = new Array();

4. 浣跨敤new Array()鍏抽敭瀛楀垱寤哄甫鏈夋寚瀹氶暱搴︾殑鏁扮粍锛?/li>

let arr = new Array(5);

鏁扮粍鐨勫厓绱犲彲浠ラ€氳繃绱㈠紩鏉ヨ闂拰淇敼銆傜储寮曚粠0寮€濮嬶紝琛ㄧず鏁扮粍涓殑绗竴涓厓绱犮€備互涓嬫槸涓€浜涘父瑙佺殑鏁扮粍鎿嶄綔鏂规硶锛?/p>

1. 璁块棶鏁扮粍鍏冪礌锛?/li>

let arr = [1, 2, 3];
console.log(arr[0]); // 杈撳嚭1

2. 淇敼鏁扮粍鍏冪礌锛?/li>

let arr = [1, 2, 3];
arr[1] = 4;
console.log(arr); // 杈撳嚭[1, 4, 3]

3. 娣诲姞鍏冪礌鍒版暟缁勬湯灏撅細

let arr = [1, 2, 3];
arr.push(4);
console.log(arr); // 杈撳嚭[1, 2, 3, 4]

4. 鍒犻櫎鏁扮粍鏈熬鐨勫厓绱狅細

let arr = [1, 2, 3];
arr.pop();
console.log(arr); // 杈撳嚭[1, 2]

5. 娣诲姞鍏冪礌鍒版暟缁勫紑澶达細

let arr = [1, 2, 3];
arr.unshift(0);
console.log(arr); // 杈撳嚭[0, 1, 2, 3]

6. 鍒犻櫎鏁扮粍寮€澶寸殑鍏冪礌锛?/li>

let arr = [1, 2, 3];
arr.shift();
console.log(arr); // 杈撳嚭[2, 3]

杩欏彧鏄竴浜涘父瑙佺殑鏁扮粍鎿嶄綔鏂规硶锛孞avaScript鎻愪緵浜嗘洿澶氱殑鏂规硶鏉ュ鐞嗘暟缁勶紝濡?code>slice()銆?code>splice()銆?code>concat()銆?code>reverse()绛夈€傚彲浠ユ牴鎹叿浣撻渶姹傞€夋嫨鍚堥€傜殑鏂规硶鏉ユ搷浣滄暟缁勩€?/p>