javascript - IE 不支持 Array includes 或 String includes 方法

Question

我一直在从事一个项目并开发一个 JavaScript 框架。原始代码大约有 700 行，所以我只粘贴了这一行。 includes 方法在 Internet Explorer 上不起作用。有解决办法吗？

var row_cells = tbl_row.match(/<td[\s\S]*?<\/td>/g);

    row.Cells = new Array();
    if (onRowBindFuncText != null) { /*Fonksyon tanımlanmaışsa daha hızlı çalış*/

        var cellCount = 0;
        for (i = 0; i < row_cells.length; i++) {

            var cell = new Cell();
            $.each(this, function (k, v) {

                if ((row_cells[i]+"").includes("#Eval(" + k + ")")) {

                    cell.Keys.push(new Key(k,v));

...代码继续

Answer 1

因为它在 IE 中不受支持，所以在 Opera ( see the compatibility table ) 中也不支持，但您可以使用建议的 polyfill :

Polyfill

This method has been added to the ECMAScript 2015 specification and may not be available in all JavaScript implementations yet. However, you can easily polyfill this method:

if (!String.prototype.includes) {
  String.prototype.includes = function(search, start) {
    'use strict';
    if (typeof start !== 'number') {
      start = 0;
    }

    if (start + search.length > this.length) {
      return false;
    } else {
      return this.indexOf(search, start) !== -1;
    }
  };
}