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From: Jake Jarvis <pig_in_shoes@yahoo.com>
Newsgroups: comp.lang.javascript
Subject: Re: setInterval
Date: Tue, 7 Feb 2017 11:13:47 +0100
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Am 07.02.2017 um 07:45 schrieb jonas.thornvall@gmail.com:
> Den tisdag 7 februari 2017 kl. 07:27:43 UTC+1 skrev Julio Di Egidio:
>> On Tuesday, February 7, 2017 at 7:09:59 AM UTC+1, jonas.t...@gmail.com wrote:
>>> Den tisdag 7 februari 2017 kl. 06:22:34 UTC+1 skrev Julio Di Egidio:
>> <snip>
>>> Well i solved it, but i really hate when i can't ***understand*** the
>>> difference, but one approach work.
>>
>> Have you tried *studying* the language?  I have given few essential pointers.
>>
>>> So i would be glad if someone can tell why this is correct and work, while
>>> all other *equivalent*? fails miserable.
>>
>> Because they were not equivalent...  One thing I notice is that in this one you
>> are using setInterval, not setTimeout, and you just happen to have put together
>> some working scheme.
>>
>> Something I can tell you for sure is that you'll be banging your head on the
>> table for as long as your approach to programming is that of the trial and
>> error...
>>
>> Best luck and have fun,
>>
>> Julio
>>
>>> function INTRO(){
>>>   mycount=25;
>>>   document.NoLinks.linkval.value=mycount;
>>>   document.getElementById('mysubset').selectedIndex=1;
>>>   bananas=setInterval(function(){monkeybuisness();}, 200);
>>> }
>>>
>>> function monkeybuisness() {
>>>   mycount--;
>>>   document.NoLinks.linkval.value=mycount;
>>>   AUTOGRAPH();
>>>   if(mycount<1){clearInterval(bananas);document.getElementById('mysubset').selectedIndex=0;}
>>> }
>
> Well if you know their not equvalent, why are they not equvalen, i see this one use
> bananas=setInterval(function(){monkeybuisness();}, 200);
>
> what differ when execute upper from lower example
>
> bananas=setInterval(monkeybuisness();, 200);
>
> Because i would think that the lower syntax is the straightforward to do what the upper actually, do just do not understand.
>
> So please explain to me.
> 1. What does the lower one actually do, because it simply not working.
> 2. What the fuck does the upper syntax mean, it is none sensical?
> function(){monkeybuisness();}, 200???????????? What kind of fucking syntax is this, and where did ECMASCRIPT/JAVASCRIPT found the idea behind, because there must be one right? I do not feel comfortable just throwing in things that i can not see the purpose with. So please for god sake can someone explain what the syntax is about, or should i just except it is totally fucking nonesensible?
>
> You see for me the syntax could as well be to settimeout
> setInterval(afewbananas(){monkeybuisness();}, 200)
> And you see monkeybuisness i have no problem with alot of what i do is that.
> But one wonder why should i always stick a few bananas into the monkey buisness. I know what monkey buisness do but i am fucking clueless to the mysteries of a few bananas.
>
> Ok rant finished, but if someone know the answer to a few bananas, don't hesitate to tell me.
>

You can do a couple of things with functions in this language:
- you can call them
- you could give it to someone else, so they call it (remember
   the FileReader?)

Do you understand that?

// calling
monkeybusiness();

vs.

/*
giving setTimeout a handle on the function, setTimeout will arrange the 
calling ... after the timeout
*/
window.setTimeout(monkeybusiness, 1000);


But also please understand how functions can be defined in this language.

/*
giving setTimeout a handle on an anonymous function that calls 
monkeybusiness, setTimeout will arrange the calling
*/
window.setTimeout(function(){monkeybusiness();}, 1000);