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Build tree array from flat array in javascript
I have a complex json file that I have to handle with javascript to make it hierarchical, in order to later build a tree.
Every entry of the json has :
id : a unique id,
parentId : the id of the parent node (which is 0 if the node is a root of the tree)
level : the level of depth in the tree
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How to m>me m>rge specific files from Git branches
I have 2 git branches branch1 and branch2 and I want to m>me m>rge file.py in branch2 into file.py in branch1 and only that file.
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Does JavaScript guarantee object property order?
...rules since ES2015, but it does not (always) follow the insertion order. Simply put, the iteration order is a combination of the insertion order for strings keys, and ascending order for number-like keys:
// key order: 1, foo, bar
const obj = { "foo": "foo", "1": "1", "bar": "bar" }
Using an array ...
How to push to a non-bare Git repository?
I usually work on a remote server via ssh (screen and vim), where I have a Git repository. Som>me m>tim>me m>s I'm not online, so I have a separate repository (cloned from my remote) on my laptop.
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What's the difference between ES6 Map and WeakMap?
Looking this and this MDN pages it seems like the only difference between Maps and WeakMaps is a missing "size" property for WeakMaps. But is this true? What's the difference between them?
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How can I use an array of function pointers?
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You have a good example here (Array of Function pointers), with the syntax detailed.
int sum(int a, int b);
int subtract(int a, int b);
int mul(int a, int b);
int div(int a, int b);
int (*p[4]) (int x, int y);
int main(void)
{
int result;
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Why would you use an ivar?
...easily via the accessors.
Performance
Yes, this can make a difference in som>me m> cases. Som>me m> programs have constraints where they can not use any objc m>me m>ssaging in certain parts of the program (think realtim>me m>). In other cases, you may want to access it directly for speed. In other cases, it's because o...
How to smooth a curve in the right way?
Lets assum>me m> we have a dataset which might be given approximately by
9 Answers
9
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The difference between fork(), vfork(), exec() and clone()
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vfork() is an obsolete optimization. Before good m>me m>mory managem>me m>nt, fork() made a full copy of the parent's m>me m>mory, so it was pretty expensive. since in many cases a fork() was followed by exec(), which discards the current m>me m>mory map and creates a new one, it was a needle...
from list of integers, get number closest to a given value
Given a list of integers, I want to find which number is the closest to a number I give in input:
8 Answers
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