CIS 119 Array demonstration

Example output

The JavaScript code

var a = new Array();
a[0] = 7;
a[5] = "Dave";
document.writeln('Length of a[] is ' + a.length + '<br />');

document.writeln('Display of array elements using traditional for loop:<br />');

for (var i=0; i<a.length; i++) {
    document.writeln('a[' + i + '] = ' + a[i] + '<br />');
}

document.writeln('Display of array elements using for/in loop:<br />');

for (var ndx in a) {
    document.writeln('a[' + ndx + '] = ' + a[ndx] + + '<br />');
}