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Undefined detecting?

Undefined detecting?

2004-03-14       - By Martin Fleck

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hello group,

the following situation is giving:

a = [];
a[0] = undefined;

a.length returns 1, so there is one element inside the array.

if (a[0]) { returns undefined, it means no record is in it, but this is
wrong (a bit).

Is there another solution to detect which index the record belongs too,
without using a for in loop?

--
Martin Fleck


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