new Array()を使う方法と配列リテラルを使う方法がある。
new Array()を使うとはnew演算子でArrayオブジェクトを生成することで、コーディングの仕方に2つある
【書き方1】
配列名 = new Array(要素数);
配列名[0] = “要素1”;
配列名[1] = “要素2”;
配列名[2] = “要素3”;
【書き方2】
配列名 = new Array(“要素1″,”要素2″,”要素3″,…,”要素n”);
配列リテラルとは数値の値を数値リテラルと呼ぶように、配列の値そのものを使って配列を定義する方法。
var 配列名 = [“要素1″,”要素”,”要素3″,…,”要素n”];
と書きます。
1次元の配列などは配列リテラルで作成するのが通常。
二次元配列の記述はnew演算子を使う場合は
var a = new Array();
a[ 0 ] = new Array( 1, 2 );
a[ 1 ] = new Array( 3, 4 );
配列リテラルを使う場合は
var a = [ [ 1, 2 ], [ 3, 4 ] ];
だが、配列リテラルの値を直接書く性質上、2次元配列までしか記述できず、3次元以上になると配列アドレスを指定することになるので正しく動作しなくなる事がある。
＜正しく動作しない配列 配列リテラルによる作成＞
<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>4dimentionArrey</title>
<script type="text/javascript">
<!--
var aryGawa011001 =[["0110011"], ["0110012"], ["0110013"], ["0110014"], ["0110015"], ["0110016"], ["0110017"] ];
var aryGawa011002 =[["0110021"], ["0110022"], ["0110023"], ["0110024"], ["0110025"], ["0110026"] ];
var aryGawa011003 =[["0110031"], ["0110032"], ["0110033"], ["0110034"], ["0110035"] ];
var aryGawa011004 =[["0110041"], ["0110042"], ["0110043"], ["0110044"] ];
var aryGawa011005 =[["0110051"], ["0110052"], ["0110053"] ];
var aryShu011 =[aryGawa011001, aryGawa011002, aryGawa011003, aryGawa011004, aryGawa011005];
var aryGawa012001 =[["0120011"], ["0120012"], ["0120013"] ];
var aryGawa012002 =[["0120021"], ["0120022"], ["0120023"], ["0120024"] ];
var aryGawa012003 =[["0120031"], ["0120032"], ["0120033"], ["0120034"], ["0120035"] ];
var aryGawa012004 =[["0120041"], ["0120042"], ["0120043"], ["0120044"], ["0120045"], ["0120046"] ];
var aryShu012 =[aryGawa012001, aryGawa012002, aryGawa012003, aryGawa012004 ];
var aryGawa021001 =[["0210011"], ["0210012"], ["0210013"], ["0210014"], ["0210015"], ["0210016"], ["0210017"] ];
var aryGawa021002 =[["0210021"], ["0210022"], ["0210023"], ["0210024"], ["0210025"], ["0210026"] ];
var aryGawa021003 =[["0210031"], ["0210032"], ["0210033"], ["0210034"], ["0210035"] ];
var aryGawa021004 =[["0210041"], ["0210042"], ["0210043"], ["0210044"] ];
var aryGawa021005 =[["0210051"], ["0210052"], ["0210053"] ];
var aryShu021 =[aryGawa021001, aryGawa021002, aryGawa021003, aryGawa021004, aryGawa021005 ];
var aryGawa022001 =[["0220011"], ["0220012"], ["0220013"] ];
var aryGawa022002 =[["0220021"], ["0220022"], ["0220023"], ["0220024"] ];
var aryGawa022003 =[["0220031"], ["0220032"], ["0220033"], ["0220034"], ["0220035"] ];
var aryGawa022004 =[["0220041"], ["0220042"], ["0220043"], ["0220044"], ["0220045"], ["0220046"] ];
var aryShu022 =[aryGawa022001, aryGawa022002, aryGawa022003, aryGawa022004 ];
var aryGawa031001 =[["0310011"], ["0310012"], ["0310013"], ["0310014"], ["0310015"], ["0310016"], ["0310017"] ];
var aryGawa031002 =[["0310021"], ["0310022"], ["0310023"], ["0310024"], ["0310025"], ["0310026"] ];
var aryGawa031003 =[["0310031"], ["0310032"], ["0310033"], ["0310034"], ["0310035"] ];
var aryGawa031004 =[["0310041"], ["0310042"], ["0310043"], ["0310044"] ];
var aryGawa031005 =[["0310051"], ["0310052"], ["0310053"] ];
var aryShu031 =[aryGawa031001, aryGawa031002, aryGawa031003, aryGawa031004, aryGawa031005];
var aryGawa032001 =[["0320011"], ["0320012"], ["0320013"] ];
var aryGawa032002 =[["0320021"], ["0320022"], ["0320023"], ["0320024"] ];
var aryGawa032003 =[["0320031"], ["0320032"], ["0320033"], ["0320034"], ["0320035"] ];
var aryGawa032004 =[["0320041"], ["0320042"], ["0320043"], ["0320044"], ["0320045"], ["0320046"] ];
var aryShu032 =[aryGawa032001, aryGawa032002, aryGawa032003, aryGawa032004];
var ku1 =[aryShu011, aryShu012];
var ku2 =[aryShu021, aryShu022];
var ku3 =[aryShu031, aryShu032];
var Ku =[Ku1, Ku2 , ku3];
function aryPrint(i, j, k, pp) {
for (var p=1; p<=pp; p++) { // This doesn't work.
document.write( i + "Ku " + j + "Shu " + k + "Gawa " + p + "Point = " + Ku[i-1][j-1][k-1][p-1] + "<br />" );
// This DOES Work!
// document.write( i + "Ku " + j + "Shu " + k + "Gawa " + p + "Point = " + ku1[j-1][k-1][p-1] + "<br />" );
// document.write( i + "Ku " + j + "Shu " + k + "Gawa " + p + "Point = " + ku2[j-1][k-1][p-1] + "<br />" );
// document.write( i + "Ku " + j + "Shu " + k + "Gawa " + p + "Point = " + ku3[j-1][k-1][p-1] + "<br />" );
}
document.write("<br />");
}
-->
</script>
</head>
<body>
<script type="text/javascript">
document.write(1 + "Ku " + 1 + "Shu<br />");
aryPrint(1, 1, 1, 7);
aryPrint(1, 1, 2, 6);
aryPrint(1, 1, 3, 5);
aryPrint(1, 1, 4, 4);
aryPrint(1, 1, 5, 3);
document.write(1 + "Ku " + 2 + "Shu<br />");
aryPrint(1, 2, 1, 3);
aryPrint(1, 2, 2, 4);
aryPrint(1, 2, 3, 5);
aryPrint(1, 2, 4, 6);
document.write(2 + "Ku " + 1 + "Shu<br />");
aryPrint(2, 1, 1, 7);
aryPrint(2, 1, 2, 6);
aryPrint(2, 1, 3, 5);
aryPrint(2, 1, 4, 4);
aryPrint(2, 1, 5, 3);
document.write(1 + "Ku " + 2 + "Shu<br />");
aryPrint(2, 2, 1, 3);
aryPrint(2, 2, 2, 4);
aryPrint(2, 2, 3, 5);
aryPrint(2, 2, 4, 6);
document.write(3 + "Ku " + 1 + "Shu<br />");
aryPrint(3, 1, 1, 7);
aryPrint(3, 1, 2, 6);
aryPrint(3, 1, 3, 5);
aryPrint(3, 1, 4, 4);
aryPrint(3, 1, 5, 3);
document.write(3 + "Ku " + 2 + "Shu<br />");
aryPrint(3, 2, 1, 3);
aryPrint(3, 2, 2, 4);
aryPrint(3, 2, 3, 5);
aryPrint(3, 2, 4, 6);
</script>
</body>
</html>
この場合も
document.write( i + "Ku " + j + "Shu " + k + "Gawa " + p + "Point = " + ku1[j-1][k-1][p-1] + "<br />" ); document.write( i + "Ku " + j + "Shu " + k + "Gawa " + p + "Point = " + ku2[j-1][k-1][p-1] + "<br />" ); document.write( i + "Ku " + j + "Shu " + k + "Gawa " + p + "Point = " + ku3[j-1][k-1][p-1] + "<br />" );
3次元までは正しく動作する。
＜正しく動作する配列 new演算子による作成＞
<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>4dimentionArrey</title>
<script type="text/javascript">
<!--
var aryShu011 = new Array();
aryShu011[0] = new Array("0110011", "0110012", "0110013", "0110014", "0110015", "0110016", "0110017");
aryShu011[1] = new Array("0110021", "0110022", "0110023", "0110024", "0110025", "0110026");
aryShu011[2] = new Array("0110031", "0110032", "0110033", "0110034", "0110035" );
aryShu011[3] = new Array("0110041", "0110042", "0110043", "0110044");
aryShu011[4] = new Array("0110051", "0110052", "0110053");
var aryShu012 = new Array();
aryShu012[0] = new Array("0120011", "0120012", "0120013");
aryShu012[1] = new Array("0120021", "0120022", "0120023", "0120024");
aryShu012[2] = new Array("0120031", "0120032", "0120033", "0120034", "0120035" );
aryShu012[3] = new Array("0120041", "0120042", "0120043", "0120044", "0120045", "0120046");
var aryShu021 = new Array();
aryShu021[0] = new Array("0210011", "0210012", "0210013", "0210014", "0210015", "0210016", "0210017");
aryShu021[1] = new Array("0210021", "0210022", "0210023", "0210024", "0210025", "0210026");
aryShu021[2] = new Array("0210031", "0210032", "0210033", "0210034", "0210035" );
aryShu021[3] = new Array("0210041", "0210042", "0210043", "0210044");
aryShu021[4] = new Array("0210051", "0210052", "0210053");
var aryShu022 = new Array();
aryShu022[0] = new Array("0220011", "0220012", "0220013");
aryShu022[1] = new Array("0220021", "0220022", "0220023", "0220024");
aryShu022[2] = new Array("0220031", "0220032", "0220033", "0220034", "0220035" );
aryShu022[3] = new Array("0220041", "0220042", "0220043", "0220044", "0220045", "0220046");
var aryShu031 = new Array();
aryShu031[0] = new Array("0310011", "0310012", "0310013", "0310014", "0310015", "0310016", "0310017");
aryShu031[1] = new Array("0310021", "0310022", "0310023", "0310024", "0310025", "0310026");
aryShu031[2] = new Array("0310031", "0310032", "0310033", "0310034", "0310035" );
aryShu031[3] = new Array("0310041", "0310042", "0310043", "0310044");
aryShu031[4] = new Array("0310051", "0310052", "0310053");
var aryShu032 = new Array();
aryShu032[0] = new Array("0320011", "0320012", "0320013");
aryShu032[1] = new Array("0320021", "0320022", "0320023", "0320024");
aryShu032[2] = new Array("0320031", "0320032", "0320033", "0320034", "0320035" );
aryShu032[3] = new Array("0320041", "0320042", "0320043", "0320044", "0320045", "0320046");
var Ku = new Array();
Ku[0] = new Array(aryShu011, aryShu012);
Ku[1] = new Array(aryShu021, aryShu022);
Ku[2] = new Array(aryShu031, aryShu032);
function aryPrint(i, j, k, pp) {
for (var p=1; p<=pp; p++) { //Point
document.write( i + "Ku " + j + "Shu " + k + "Gawa " + p + "Point = " + Ku[i-1][j-1][k-1][p-1] + "<br />" );
// document.write( i + "Ku " + j + "Shu " + k + "Gawa " + p + "Point = " + ku1[j-1][k-1][p-1] + "<br />" );
// document.write( i + "Ku " + j + "Shu " + k + "Gawa " + p + "Point = " + ku2[j-1][k-1][p-1] + "<br />" );
// document.write( i + "Ku " + j + "Shu " + k + "Gawa " + p + "Point = " + ku3[j-1][k-1][p-1] + "<br />" );
}
document.write("<br />");
}
-->
</script>
</head>
<body>
<script type="text/javascript">
document.write(1 + "Ku " + 1 + "Shu<br />");
aryPrint(1, 1, 1, 7);
aryPrint(1, 1, 2, 6);
aryPrint(1, 1, 3, 5);
aryPrint(1, 1, 4, 4);
aryPrint(1, 1, 5, 3);
document.write(1 + "Ku " + 2 + "Shu<br />");
aryPrint(1, 2, 1, 3);
aryPrint(1, 2, 2, 4);
aryPrint(1, 2, 3, 5);
aryPrint(1, 2, 4, 6);
document.write(2 + "Ku " + 1 + "Shu<br />");
aryPrint(2, 1, 1, 7);
aryPrint(2, 1, 2, 6);
aryPrint(2, 1, 3, 5);
aryPrint(2, 1, 4, 4);
aryPrint(2, 1, 5, 3);
document.write(1 + "Ku " + 2 + "Shu<br />");
aryPrint(2, 2, 1, 3);
aryPrint(2, 2, 2, 4);
aryPrint(2, 2, 3, 5);
aryPrint(2, 2, 4, 6);
document.write(3 + "Ku " + 1 + "Shu<br />");
aryPrint(3, 1, 1, 7);
aryPrint(3, 1, 2, 6);
aryPrint(3, 1, 3, 5);
aryPrint(3, 1, 4, 4);
aryPrint(3, 1, 5, 3);
document.write(3 + "Ku " + 2 + "Shu<br />");
aryPrint(3, 2, 1, 3);
aryPrint(3, 2, 2, 4);
aryPrint(3, 2, 3, 5);
aryPrint(3, 2, 4, 6);
</script>
</body>
</html>