ワークシートで配列を容易に操作するために、SpreadJSには11個の配列操作関数が用意されています。
配列の結合
ソースのサイズが固定でない場合は特に、データの結合は難しくなります。VSTACK関数とHSTACK関数を使用すると、動的配列を簡単に組み合わせて、データを垂直または水平に積み重ねることができます。
VSTACK関数 - 配列を垂直に積み重ねます
HSTACK関数- 配列を水平に積み重ねます
配列の形状
配列からリストへ、または逆にリストから配列への場合は特に、データの「形状」の変更は難しくなります。2次元配列を単純なリストに変換したい場合は、TOROW関数およびTOCOL関数を使って2次元配列を1つの行または列のデータに変換します。
反対に、WRAPROWS関数およびWRAPCOLS関数を使えば、指定した幅や高さになったら次の行にデータを「折り返し」て2次元配列を作成します（このドキュメントのテキストのように）。
TOROW関数 - 配列を1つの行として返します
TOCOL関数 - 配列を1つの列として返します
WRAPROWS関数 - 行の配列を2次元配列に折り返します
WRAPCOLS関数 - 列の配列を2次元配列に折り返します
配列のサイズ変更
TAKE関数およびDROP関数を使用すると、配列の先頭または末尾の行数を指定して、配列のサイズを縮小できます。
CHOOSEROWS関数およびCHOOSECOLS関数を使用すると、配列から特定の行や列をインデックスで選択できます。
EXPAND関数を使用すると、指定したサイズに配列を拡大できます。必要なのは、新しい次元と、余分なスペースを埋める値を指定することだけです。
TAKE関数 - 配列の先頭または末尾から行または列を返します
DROP関数 - 配列の先頭または末尾から行または列を削除します
CHOOSEROWS関数 - 配列から指定された行を返します
CHOOSECOLS関数 - 配列から指定された列を返します
EXPAND関数 - 配列を指定された次元に拡張します
window.onload = function() {
var spread = new GC.Spread.Sheets.Workbook(_getElementById("ss"));
spread.options.allowDynamicArray = true;
initStyles(spread);
initSpread(spread);
};
var data = [
{
sheetName: 'VSTACK',
cells: [
[{v:"データ",s:"title"}],
["A","B","C",null,"AA","BB","CC"],
["D","E","F",null,"DD","EE","FF"],
[{v:"計算式",s:"title"}],
["=FORMULATEXT(A7)"],
[{v:"結果",s:"title"}],
["=VSTACK(A2:C3,E2:G3)"]
],
columnsWidth: [69]
},
{
sheetName: 'HSTACK',
cells: [
[{v:"データ",s:"title"}],
["A","B","C",null,"AA","BB","CC"],
["D","E","F",null,"DD","EE","FF"],
[{v:"計算式",s:"title"}],
["=FORMULATEXT(A7)"],
[{v:"結果",s:"title"}],
["=HSTACK(A2:C3,E2:G3)"]
],
columnsWidth: [69]
},
{
sheetName: 'TOROW',
cells: [
[{v:"データ",s:"title"}],
["Ben","Peter","Mary","Sam"],
["John","Hillary","Jenny","James"],
["Agnes","Harry","Felicity","Joe"],
[{v:"計算式",s:"title"}],
["=FORMULATEXT(A8)"],
[{v:"結果",s:"title"}],
["=TOROW(A2:D4)"]
],
columnsWidth: [69]
},
{
sheetName: 'TOCOL',
cells: [
[{v:"データ",s:"title"}],
["Ben","Peter","Mary","Sam"],
["John","Hillary","Jenny","James"],
["Agnes","Harry","Felicity","Joe"],
[{v:"計算式",s:"title"}],
["=FORMULATEXT(A8)"],
[{v:"結果",s:"title"}],
["=TOCOL(A2:D4)"]
],
columnsWidth: [69]
},
{
sheetName: 'WRAPROWS',
cells: [
[{v:"データ",s:"title"}],
["A","B","C","D","E","F","G"],
[],
[{v:"計算式",s:"title"}, "=FORMULATEXT(B5)"],
[{v:"結果",s:"title"}, "=WRAPROWS(A2:G2,3)"],
[],
[],
[],
[{v:"計算式",s:"title"}, "=FORMULATEXT(B10)"],
[{v:"結果",s:"title"}, '=WRAPROWS(A2:G2,3,"x")'],
],
columnsWidth: [69]
},
{
sheetName: 'WRAPCOLS',
cells: [
[{v:"データ",s:"title"}],
["A","B","C","D","E","F","G"],
[],
[{v:"計算式",s:"title"}, "=FORMULATEXT(B5)"],
[{v:"結果",s:"title"}, "=WRAPCOLS(A2:G2,3)"],
[],
[],
[],
[{v:"計算式",s:"title"}, "=FORMULATEXT(B10)"],
[{v:"結果",s:"title"}, '=WRAPCOLS(A2:G2,3,"x")'],
],
columnsWidth: [69]
},
{
sheetName: 'TAKE',
cells: [
[{v:"データ",s:"title"}],
[1,2,3],
[4,5,6],
[7,8,9],
[],
[{v:"計算式",s:"title"}, "=FORMULATEXT(B7)"],
[{v:"結果",s:"title"}, "=TAKE(A2:C4,2)"],
[],
[],
[{v:"計算式",s:"title"}, "=FORMULATEXT(B11)"],
[{v:"結果",s:"title"}, '=TAKE(A2:C4,,2)'],
[],
[],
[],
[{v:"計算式",s:"title"}, "=FORMULATEXT(B16)"],
[{v:"結果",s:"title"}, '=TAKE(A2:C4,-2)'],
[],
[],
[{v:"計算式",s:"title"}, "=FORMULATEXT(B20)"],
[{v:"結果",s:"title"}, '=TAKE(A2:C4,2,2)'],
],
columnsWidth: [69]
},
{
sheetName: 'DROP',
cells: [
[{v:"データ",s:"title"}],
[1,2,3],
[4,5,6],
[7,8,9],
[],
[{v:"計算式",s:"title"}, "=FORMULATEXT(B7)"],
[{v:"結果",s:"title"}, "=DROP(A2:C4,2)"],
[],
[{v:"計算式",s:"title"}, "=FORMULATEXT(B10)"],
[{v:"結果",s:"title"}, '=DROP(A2:C4,,2)'],
[],
[],
[],
[{v:"計算式",s:"title"}, "=FORMULATEXT(B15)"],
[{v:"結果",s:"title"}, '=DROP(A2:C4,-2)'],
[],
[{v:"計算式",s:"title"}, "=FORMULATEXT(B18)"],
[{v:"結果",s:"title"}, '=DROP(A2:C4,2,2)'],
],
columnsWidth: [69]
},
{
sheetName: 'CHOOSEROWS',
cells: [
[{v:"データ",s:"title"}],
[1,2],
[3,4],
[5,6],
[7,8],
[9,10],
[11,12],
[],
[{v:"計算式",s:"title"}, "=FORMULATEXT(B10)"],
[{v:"結果",s:"title"}, "=CHOOSEROWS(A2:B7,1,3,5,1)"],
[],
[],
[],
[],
[{v:"計算式",s:"title"}, "=FORMULATEXT(B16)"],
[{v:"結果",s:"title"}, '=CHOOSEROWS(A2:B7,-1,-2)'],
],
columnsWidth: [69]
},
{
sheetName: 'CHOOSECOLS',
cells: [
[{v:"データ",s:"title"}],
[1,2,3,4,5],
[6,7,8,9,10],
[11,12,13,14,15],
[16,17,18,19,20],
[21,22,23,24,25],
[],
[{v:"計算式",s:"title"}, "=FORMULATEXT(B9)"],
[{v:"結果",s:"title"}, "=CHOOSECOLS(A2:E6,1,3,5,1)"],
[],
[],
[],
[],
[],
[{v:"計算式",s:"title"}, "=FORMULATEXT(B16)"],
[{v:"結果",s:"title"}, '=CHOOSECOLS(A2:E6,-1,-2)'],
],
columnsWidth: [69]
},
{
sheetName: 'EXPAND',
cells: [
[{v:"データ",s:"title"}],
[1,2],
[3,4],
[],
[{v:"計算式",s:"title"}, "=FORMULATEXT(B6)"],
[{v:"結果",s:"title"}, "=EXPAND(A2:B3,3,3)"],
[],
[],
[],
[{v:"計算式",s:"title"}, "=FORMULATEXT(B11)"],
[{v:"結果",s:"title"}, '=EXPAND(A2:B3,3,3, "-")'],
],
columnsWidth: [69]
},
];
function initSpread(workbook) {
workbook.suspendPaint();
workbook.suspendCalcService();
workbook.setSheetCount(data.length);
for (var i = 0; i < data.length; i++) {
var sheetData = data[i];
var sheet = workbook.sheets[i];
sheet.name(sheetData.sheetName);
setCells(sheet, sheetData.cells, 0, 0);
setColumnsWidth(sheet, sheetData.columnsWidth);
}
workbook.resumeCalcService();
workbook.resumePaint();
}
function initStyles(workbook) {
var style = new GC.Spread.Sheets.Style();
style.name = 'title';
style.font = 'normal bold 16px Segoe UI';
style.foreColor = "#172b4d";
workbook.addNamedStyle(style);
}
function setCells(sheet, cells, rowIndex, colIndex) {
for(var i = 0; i < cells.length; i++) {
var row = cells[i];
var r = rowIndex + i;
for (var j = 0; j < row.length; j++) {
var cell = row[j];
var c = colIndex + j;
if (cell === null) {
continue;
}
if (typeof cell === "object") {
if (cell.v !== undefined) {
sheet.setValue(r, c, cell.v);
}
if (cell.s !== undefined) {
sheet.setStyle(r, c, cell.s)
}
} else if (cell[0] === '=') {
sheet.setFormula(r, c, cell);
} else {
sheet.setValue(r, c, cell);
}
}
}
}
function setColumnsWidth(sheet, columnsWidth) {
if (!columnsWidth) {
return;
}
for (var i = 0; i < columnsWidth.length; i++) {
sheet.setColumnWidth(i, columnsWidth[i]);
}
}
function _getElementById(id) {
return document.getElementById(id);
}
<!doctype html>
<html style="height:100%;font-size:14px;">
<head>
<meta name="spreadjs culture" content="ja-jp" />
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<link rel="stylesheet" type="text/css" href="$DEMOROOT$/ja/purejs/node_modules/@mescius/spread-sheets/styles/gc.spread.sheets.excel2013white.css">
<script src="$DEMOROOT$/ja/purejs/node_modules/@mescius/spread-sheets/dist/gc.spread.sheets.all.min.js" type="text/javascript"></script>
<script src="$DEMOROOT$/ja/purejs/node_modules/@mescius/spread-sheets-resources-ja/dist/gc.spread.sheets.resources.ja.min.js" type="text/javascript"></script>
<script src="$DEMOROOT$/spread/source/js/license.js" type="text/javascript"></script>
<script src="app.js" type="text/javascript"></script>
<link rel="stylesheet" type="text/css" href="styles.css">
</head>
<body>
<div class="sample-tutorial">
<div id="ss" class="sample-spreadsheets"></div>
</div>
</body>
</html>
input[type="text"] {
width: 200px;
margin-right: 20px;
}
label {
display: inline-block;
width: 110px;
}
.sample-tutorial {
position: relative;
height: 100%;
overflow: hidden;
}
.sample-spreadsheets {
width: 100%;
height: 100%;
overflow: hidden;
float: left;
}
label {
display: block;
margin-bottom: 6px;
}
input {
padding: 4px 6px;
}
input[type=button] {
margin-top: 6px;
display: block;
width:216px;
}
body {
position: absolute;
top: 0;
bottom: 0;
left: 0;
right: 0;
}
code {
border: 1px solid #000;
}
