Version 1

[yaffs-website] / node_modules / core-js / modules / es6.array.index-of.js

diff --git a/node_modules/core-js/modules/es6.array.index-of.js b/node_modules/core-js/modules/es6.array.index-of.js
new file mode 100644 (file)
index 0000000..9037631
--- /dev/null
+++ b/node_modules/core-js/modules/es6.array.index-of.js
@@ -0,0 +1,15 @@
+'use strict';
+var $export       = require('./_export')
+  , $indexOf      = require('./_array-includes')(false)
+  , $native       = [].indexOf
+  , NEGATIVE_ZERO = !!$native && 1 / [1].indexOf(1, -0) < 0;
+
+$export($export.P + $export.F * (NEGATIVE_ZERO || !require('./_strict-method')($native)), 'Array', {
+  // 22.1.3.11 / 15.4.4.14 Array.prototype.indexOf(searchElement [, fromIndex])
+  indexOf: function indexOf(searchElement /*, fromIndex = 0 */){
+    return NEGATIVE_ZERO
+      // convert -0 to +0
+      ? $native.apply(this, arguments) || 0
+      : $indexOf(this, searchElement, arguments[1]);
+  }
+});
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