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From: Jake Jarvis <pig_in_shoes@yahoo.com>
Newsgroups: comp.lang.javascript
Subject: Re: Type undefined
Date: Mon, 23 Jan 2012 11:44:51 +0100
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On 23.01.2012 11:23, wrote Archos:
> Why I get an error about a type undefined when it has been defined in
> top of function Older10() ?
> 
> ===
> function person(name, age) {this.name=name; this.age=age;}
> 
> function Older10(people) {
> 	var old = people[0];
> 
> 	for (var index = 1; index < 10; index++) {
> 		if (people[index] > old.age) {
> 			old = people[index]; // ERROR! TypeError: old is undefined
> 		}
> 	}
> 	return old;
> }
> 
> function main() {
> 	var array = new Array(10);
> 
> 	array[1] = new person("Paul", 23);
> 	array[2] = new person("Jim", 24);
> 	array[3] = new person("Sam", 84);
> 	array[4] = new person("Rob", 54);
> 	array[8] = new person("Karl", 19);
> 
> 	var older = Older10(array);
> 
> 	console.log("The older of the group is: " + older.name + "\n");
> }
> ===

'array[0]' in function 'main' is undefined.
Therefore 'people[0]' in function 'Older10' is undefined.

-- 
Jake Jarvis