setTimeout in javascript executing timeout code right away and not waiting

Question

I have the following line in my javascript code

setTimeout(reload(), 30000);

Which I expect to wait 30 seconds then call the reload function.

The issue is that the reload function is being called right away and not waiting for the timeout, why is the setTimeout calling the reload function right away and not waiting the specified amount of time? The setTimeout call is also being done in an onloadend FileReader function if that would make any difference.

No parentheses, calling with parentheses uses the return value — Andrew Li, Sep 01 '16 at 16:43
This is definitely a duplicate. But I can't find similar question — hindmost, Sep 01 '16 at 16:43

score 5 · Accepted Answer · answered Sep 01 '16 at 16:42

5

setTimeout accepts a function as the first argument, unless reload() return a function to be run, you probably wanted

setTimeout(reload, 30000);

answered Sep 01 '16 at 16:42

Madara's Ghost

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ahh, so i want to call the reload function without using the () and just call reload? – jgr208 Sep 01 '16 at 16:43

setTimeout in javascript executing timeout code right away and not waiting

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