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JS實現數組刪除指定元素功能示例

2019-11-19 11:23:55

字體：大中小

來源：轉載

供稿：網友

本文實例講述了JS實現數組刪除指定元素功能。分享給大家供大家參考，具體如下：

<!DOCTYPE html><html lang="en"><head>  <meta charset="UTF-8">  <title>m.survivalescaperooms.com JS數組刪除指定元素</title></head><body><script>  var array = ["111", "222", "333", "444", "555", "666"];  var indexList = [0, 5, 6];  var indexList1 = [5];  Array.prototype.del = function(indexList) {    function isValidate(number) {      if(isNaN(number) && number > this.length) {        return false;      }    }    if(indexList instanceof Array) {      indexList.sort(function(x, y) {        if(x > y) {          return 1;        } else {          return -1;        }      });      var lastIndex = indexList[indexList.length - 1];      isValidate(lastIndex);      for(var i = 0; i < indexList.length; i++) {        var n = i;        if(n > 0) {          indexList[i] = indexList[i] - n;        }        this.splice(indexList[i], 1);        n++;      }    } else {      isValidate(indexList);      this.splice(indexList, 1);    }  }  console.log("before delete: " + array);  array.del(indexList1);  console.log("after delete: " + array);</script></body></html>

運行結果：