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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 use setArguments() and getArguments() methods in Fragments?
I have 2 fragments: (1)Frag1 (2)Frag2.
6 Answers
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Python matplotlib multiple bars
How to plot multiple bars in matplotlib, when I tried to call the bar function multiple times, they overlap and as seen the below figure the highest value red can be seen only.
How can I plot the multiple bars with dates on the x-axes?
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How do I modify a MySQL column to allow NULL?
MySQL 5.0.45
6 Answers
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Difference between this and self in self-type annotations?
In various Scala literature I see some self-type annotations using "this" and others using "self":
2 Answers
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PHP - how to best determine if the current invocation is from CLI or web server?
I need to determine whether the current invocation of PHP is from the command line (CLI) or from the web server (in my case, Apache with mod_php).
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How do I get a value of datetime.today() in Python that is “timezone aware”?
I am trying to subtract one date value from the value of datetime.today() to calculate how long ago something was. But it complains:
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For loop for HTMLCollection elements
I'm trying to set get id of all elements in an HTMLCollectionOf . I wrote the following code:
12 Answers
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What's the state of the art in email validation for Rails?
What are you using to validate users' email addresses, and why?
13 Answers
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