From 95aca4b4d8fa62815d4bd412fff1a364f842814a Mon Sep 17 00:00:00 2001 From: Ryan Johnson Date: Thu, 29 Apr 2021 16:16:42 -0700 Subject: remove retired locales (#699) --- .../reference/global_objects/array/fill/index.html | 149 --------------------- 1 file changed, 149 deletions(-) delete mode 100644 files/vi/web/javascript/reference/global_objects/array/fill/index.html (limited to 'files/vi/web/javascript/reference/global_objects/array/fill') diff --git a/files/vi/web/javascript/reference/global_objects/array/fill/index.html b/files/vi/web/javascript/reference/global_objects/array/fill/index.html deleted file mode 100644 index e7e8201c46..0000000000 --- a/files/vi/web/javascript/reference/global_objects/array/fill/index.html +++ /dev/null @@ -1,149 +0,0 @@ ---- -title: Array.prototype.fill() -slug: Web/JavaScript/Reference/Global_Objects/Array/fill -translation_of: Web/JavaScript/Reference/Global_Objects/Array/fill ---- -
{{JSRef}}
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Phương thức fill() điền (sửa đổi) tất cả các phần tử của một mảng từ một chỉ mục bắt đầu (số không mặc định) đến một chỉ mục kết thúc (độ dài mảng mặc định) với một giá trị tĩnh. Nó trả về mảng đã sửa đổi

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{{EmbedInteractiveExample("pages/js/array-fill.html")}}
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Syntax

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arr.fill(value[, start[, end]])
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Parameters

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value
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Value to fill an array.
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start {{optional_inline}}
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Start index, defaults to 0.
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end {{optional_inline}}
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End index, defaults to this.length.
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Return value

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The modified array.

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Description

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The fill method takes up to three arguments value, start and end. The start and end arguments are optional with default values of 0 and the length of the this object.

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If start is negative, it is treated as length+start where length is the length of the array. If end is negative, it is treated as length+end.

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fill is intentionally generic, it does not require that its this value be an Array object.

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fill is a mutable method, it will change this object itself, and return it, not just return a copy of it.

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When fill gets passed an object, it will copy the reference and fill the array with references to that object.

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Examples

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[1, 2, 3].fill(4);               // [4, 4, 4]
-[1, 2, 3].fill(4, 1);            // [1, 4, 4]
-[1, 2, 3].fill(4, 1, 2);         // [1, 4, 3]
-[1, 2, 3].fill(4, 1, 1);         // [1, 2, 3]
-[1, 2, 3].fill(4, 3, 3);         // [1, 2, 3]
-[1, 2, 3].fill(4, -3, -2);       // [4, 2, 3]
-[1, 2, 3].fill(4, NaN, NaN);     // [1, 2, 3]
-[1, 2, 3].fill(4, 3, 5);         // [1, 2, 3]
-Array(3).fill(4);                // [4, 4, 4]
-[].fill.call({ length: 3 }, 4);  // {0: 4, 1: 4, 2: 4, length: 3}
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-// Objects by reference.
-var arr = Array(3).fill({}) // [{}, {}, {}];
-arr[0].hi = "hi"; // [{ hi: "hi" }, { hi: "hi" }, { hi: "hi" }]
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Polyfill

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if (!Array.prototype.fill) {
-  Object.defineProperty(Array.prototype, 'fill', {
-    value: function(value) {
-
-      // Steps 1-2.
-      if (this == null) {
-        throw new TypeError('this is null or not defined');
-      }
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-      var O = Object(this);
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-      // Steps 3-5.
-      var len = O.length >>> 0;
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-      // Steps 6-7.
-      var start = arguments[1];
-      var relativeStart = start >> 0;
-
-      // Step 8.
-      var k = relativeStart < 0 ?
-        Math.max(len + relativeStart, 0) :
-        Math.min(relativeStart, len);
-
-      // Steps 9-10.
-      var end = arguments[2];
-      var relativeEnd = end === undefined ?
-        len : end >> 0;
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-      // Step 11.
-      var final = relativeEnd < 0 ?
-        Math.max(len + relativeEnd, 0) :
-        Math.min(relativeEnd, len);
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-      // Step 12.
-      while (k < final) {
-        O[k] = value;
-        k++;
-      }
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-      // Step 13.
-      return O;
-    }
-  });
-}
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If you need to support truly obsolete JavaScript engines that don't support Object.defineProperty, it's best not to polyfill Array.prototype methods at all, as you can't make them non-enumerable.

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Specifications

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SpecificationStatusComment
{{SpecName('ES2015', '#sec-array.prototype.fill', 'Array.prototype.fill')}}{{Spec2('ES2015')}}Initial definition.
{{SpecName('ESDraft', '#sec-array.prototype.fill', 'Array.prototype.fill')}}{{Spec2('ESDraft')}}
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Browser compatibility

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{{Compat("javascript.builtins.Array.fill")}}

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See also

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