<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>Two-Dimensional Arrays</title>
</head>
<body>
<script>
"use strict";
main();
function main() {
document.writeln("<h2>First Data Set</h2>");
const firstArray = [
[10, 20, 30],
[40, 50, 60],
[70, 80, 90]
];
printArray(firstArray);
document.writeln("<h2>Second Data Set</h2>");
let secondArray = createArray(2, 3);
initializeArray(secondArray, 1);
printArray(secondArray);
document.writeln("<h2>Third Data Set (Ragged Array)</h2>");
const thirdArray = [
[100, 200, 300],
[400],
[700, 800],
[],
[500, 600, 900, 1000]
];
printArray(thirdArray);
}
function createArray(maxRows, maxCols) {
let newArray = new Array(maxRows);
for (let row = 0; row < maxRows; row++) {
newArray[row] = new Array(maxCols);
}
return newArray;
}
function initializeArray(data, initialValue) {
for (let row = 0; row < data.length; row++) {
for (let col = 0; col < data[row].length; col++) {
data[row][col] = initialValue;
initialValue++;
}
}
}
function printArray(data) {
for (let row = 0; row < data.length; row++) {
for (let col = 0; col < data[row].length; col++) {
document.writeln(data[row][col] + " ");
}
document.writeln("<br>");
}
}
</script>
</body>
</html>