From 6ca84f1794af830ada9736d7289ce29aabb04ca3 Mon Sep 17 00:00:00 2001 From: t7yang Date: Mon, 10 Jan 2022 08:38:05 +0800 Subject: remove `notranslate` class in zh-TW --- .../reference/global_objects/array/length/index.html | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) (limited to 'files/zh-tw/web/javascript/reference/global_objects/array/length') diff --git a/files/zh-tw/web/javascript/reference/global_objects/array/length/index.html b/files/zh-tw/web/javascript/reference/global_objects/array/length/index.html index 453564d528..1b6497b07a 100644 --- a/files/zh-tw/web/javascript/reference/global_objects/array/length/index.html +++ b/files/zh-tw/web/javascript/reference/global_objects/array/length/index.html @@ -7,7 +7,7 @@ translation_of: Web/JavaScript/Reference/Global_Objects/Array/length

length 為Array物件的屬性 ,可供設定或回傳該陣列實體中包含的元素個數。其值必為一大於零、32位元、且恆大於該陣列最大索引數的正整數。

-
var items = ['shoes', 'shirts', 'socks', 'sweaters'];
+
var items = ['shoes', 'shirts', 'socks', 'sweaters'];
 items.length;
 
 // returns 4
@@ -16,7 +16,7 @@ items.length;

length 屬性的值必為一正整數,其值必介於 0 ~ 232 (不包含)之間.

-
var namelistA = new Array(4294967296); //232 = 4294967296
+
var namelistA = new Array(4294967296); //232 = 4294967296
 var namelistC = new Array(-100) //負數
 
 console.log(namelistA.length); //RangeError: Invalid array length
@@ -32,7 +32,7 @@ console.log(namelistB.length);
 
 

你可以透過改變 length 屬性來改變陣列的長度。當你透過 length 屬性來增加陣列的長度時,陣列中實際的元素也會隨之增加。舉例來說,當你將 array.length 由 2 增加為3,則改動後該陣列即擁有3個元素,該新增的元素則會是一個不可迭代(non-iterable)的空槽(empty slot)。

-
const arr = [1, 2];
+
const arr = [1, 2];
 console.log(arr);
 // [ 1, 2 ]
 
@@ -62,7 +62,7 @@ arr.forEach(element => console.log(element)); // 空元素無法被迭代
 
 

以下範例中, 陣列 numbers 透過 length 屬性進行迭代操作,並將其內容值加倍。

-
var numbers = [1, 2, 3, 4, 5];
+
var numbers = [1, 2, 3, 4, 5];
 var length = numbers.length;
 for (var i = 0; i < length; i++) {
   numbers[i] *= 2;
@@ -74,7 +74,7 @@ for (var i = 0; i < length; i++) {
 
 

以下範例中, 陣列 numbers  的長度若大於 3,則將其長度縮減至 3。

-
var numbers = [1, 2, 3, 4, 5];
+
var numbers = [1, 2, 3, 4, 5];
 
 if (numbers.length > 3) {
   numbers.length = 3;
-- 
cgit v1.2.3-54-g00ecf