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Max value of array with unknown Array length

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Oct 31.2003

I can’t seem to find a way to get the maximum value of an array with an unknown quantity of variables in it. generally you’d write something like this:

tempmax=Math.max(ptotal[0],ptotal[1],ptotal[2],ptotal[3])

but that array ‘ptotal’ can range from having an array length of 1 to 6.

Is anyone able to help me out here. thanks

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JavaScript

4 Comments(s) ↴

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@GollumOct 31.2003 — You might consider implementing your own max() function that takes an array as an argument, uses the .length property and inspects each element looking for the max.
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@CharlesOct 31.2003 — [font=monospace]<script type="text/javascript">

<!--

Array.prototype.max = function () {

if (this.length == 0) return undefined;

var n = Number(this[0]);

for (var i=1; i<this.length; i++) {n = Math.max(n, this[i])};

return n;

}



alert ([1, 2, 3, 2, 1].max())

// -->

</script>[/font]
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@Khalid_AliOct 31.2003 — Did I miss something here???

how come you are not able to use

array.length???

either its too early for me.?. or yoru question does not make any sense
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@hyperstyleauthorNov 01.2003 — thanks charles, i didn't think to do it that way
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