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@twlca
Created January 18, 2016 09:27
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// 定義新的陣列 array
var 五都 = ["台北市", "新北市", "台中市", "台南市", "高雄市"];
console.log( 五都.length );
// 5
// 取得陣列的元素,元素由 0 起算
var 首都 = 五都[0];
// "台北市"
var 南部第一大都市 = 五都[五都.length - 1];
// "高雄市"
// 取得陣列中的元素
五都.foreach( function( item, index, array ) {
console.log( item, index );
});
// "台北市", 0
// "新北市", 1
// "台中市", 2
// "台南市", 3
// "高雄市", 4
// 加入一新元素到陣列尾端
var newLength = 五都.push( "桃園市" );
// ["台北市", "新北市", "台中市", "台南市", "高雄市", "桃園市"];
// 由陣列尾端移除元素
var 移除的元素 = 六都.pop();
// ["台北市", "新北市", "台中市", "台南市", "高雄市"];
// 加入一新元素到陣列頭端
var 移除的元素 = 六都.shift();
// ["新北市", "台中市", "台南市", "高雄市", "桃園市"];
// 加入一新元素到陣列頭端
var newLength = 六都.unshift( "台北市" );
// ["台北市", "新北市", "台中市", "台南市", "高雄市", "桃園市"];
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