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if (key in object) or if(object.hasOwnProperty(key)
...someMap.constructor will yield -> function Object() { [native code] }
Now, if you want to iterate through "someMap" you will have to do it this way:
const key
for(key in someMap ){
if (someMap.hasOwnProperty(key)) {
// Do something
}
}
We are doing so in order to avoid iterating over i...
Java recursive Fibonacci sequence
... fibonacci(3) + fibonacci(2)
fibonacci(2) = fibonacci(1) + fibonacci(0)
Now you already know fibonacci(1)==1 and fibonacci(0) == 0. So, you can subsequently calculate the other values.
Now,
fibonacci(2) = 1+0 = 1
fibonacci(3) = 1+1 = 2
fibonacci(4) = 2+1 = 3
fibonacci(5) = 3+2 = 5
And from fi...
How to get HTML 5 input type=“date” working in Firefox and/or IE 10
... Glad to hear this. Should be on by default imo. But this is good to know.
– Solomon Closson
Dec 22 '17 at 4:24
I...
How to resize the iPhone/iPad Simulator?
...Select Simulator
Goto Window tab
Select Physical Size option (cmd + 1)
Now if this dosen’t make size as per your interest then follow below steps :
Select Simulator
Goto edge of simulator. This will convert your cursor to resize option (Bidirectional arrow).
Now using this resize option you ...
How do I pass an extra parameter to the callback function in Javascript .filter() method?
...
Ok now I understand. I was trying to pass the parameters directly to the callback function... I really need to work on my JavaScript. Thank you Felix, your answer is very helpful
– agente_secreto
...
How to determine if an NSDate is today?
...suggestion. I had to look up what era was, so for anyone else who doesn't know, it distinguishes between BC and AD. This is probably unnecessary for most people, but it's easy to check and adds some certainty, so I've included it. If you're going for speed, this probably isn't a good method anyway.
...
How can one close HTML tags in Vim quickly?
...y exact rename it to "html.vim" so that it will effect HTML files as well. Now, I have two of the exact same files in ~/.vim/ftplugin (xml.vim and html.vim).
– user2719875
Jun 11 '15 at 19:55
...
Creating rounded corners using CSS [closed]
....they're useful for prototyping but add a lot of extra weight to the DOM. Now that I've got mine adjusted the way I want, I plan to convert them to images.
– Ben Regenspan
Dec 4 '09 at 13:59
...
How do I suspend painting for a control and its children?
...essage, and defined WM_SETREDRAW, but didn't actually use it for anything. Now it does.)
– neminem
Jun 1 '11 at 22:22
...
How to create loading dialogs in Android?
...ally show a bar, it shows a spinning activity circle thing. I'm sure you know what I mean :)
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