hello javascript datastruct(01)

#資料結構 Array

####建立初始化陣列

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> //fibonacci數列 > > var fibonacci = []; //初始化 > fibonacci[1] = 1; > fibonacci[2] = 1; > > for ( i=3 ; i < 11 ; i++) { > fibonacci[i] = fibonacci[i-2] + fibonacci[i-1]; > }; > > for ( i=1 ; i < fibonacci.length; i++) { > console.log(fibonacci[i]); > } > >

####添加和刪除元素

push（添加最後項）<==> pop (移除最後項)

unshift（添加最前項）<==> shift （其除最前項）

####二維和多維陣列

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>//二維陣列 > >var averageTemp = []; > >averageTemp[0] = []; >averageTemp[0][0] = 72; >averageTemp[0][1] = 75; >averageTemp[0][2] = 79; >averageTemp[0][3] = 79; >averageTemp[0][4] = 81; >averageTemp[0][5] = 81; > >averageTemp[1] = []; >averageTemp[1][0] = 81; >averageTemp[1][1] = 79; >averageTemp[1][2] = 75; >averageTemp[1][3] = 75; >averageTemp[1][4] = 73; >averageTemp[1][5] = 72; > >function printMatrix(myMatrix) { > for (var i=0; i<myMatrix.length; i++){ > for (var j=0; j<myMatrix[i].length; j++) > { > console.log(myMatrix[i][j]); > } > } >} > >printMatrix(averageTemp); > >

####陣列方法（合併、迭代器函數、搜尋和排序、輸出陣列為字串）

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//簡單實作用push加新元素進入array裡
//結果由 [1, 2, 3, 4, 5]
//變 [1, 2, 3, 4, 5, 6]
var HarryPotter = [1, 2, 3, 4, 5];
console.log("Before: ")
for (var i=0; i<HarryPotter.length; i++){
    console.log(HarryPotter[i]);
}
HarryPotter.push(6)
console.log()
console.log("After: ")
for (var i=0; i<HarryPotter.length; i++){
     console.log(HarryPotter[i]);
}