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How is AngularJS different from jQuery
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While Angular 1 was a framework, Angular 2 is a platform. (ref)
To developers, Angular2 provides some features beyond showing data on screen. For example, using angular2 cli tool can help you "pre-compile" your code and generate necessary javascrip...
How do you create nested dict in Python?
...rkey': 'value'}}
You can populate that however you want.
I would recommend in your code something like the following:
d = {} # can use defaultdict(dict) instead
for row in file_map:
# derive row key from something
# when using defaultdict, we can skip the next step creating a dictio...
How to track down a “double free or corruption” error
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If you're using glibc, you can set the MALLOC_CHECK_ environment variable to 2, this will cause glibc to use an error tolerant version of malloc, which will cause your program to abort at the point where the double free is done.
You can set this from gdb by using the set environment ...
Add days to JavaScript Date
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console.log(date.addDays(5));
This takes care of automatically incrementing the month if necessary. For example:
8/31 + 1 day will become 9/1.
The problem with using setDate directly is that it's a mutator and that sort of thing is best avoided. ECMA saw fit to treat Date as a mutable class r...
Setting variable to NULL after free
In my company there is a coding rule that says, after freeing any memory, reset the variable to NULL . For example ...
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How do I remove code duplication between similar const and non-const member functions?
... have the following class X where I want to return access to an internal member:
19 Answers
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How to use a class from one C# project with another C# project
In the same solution, I have two projects: P1 and P2. How can I make use of a class of P1 in P2?
9 Answers
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Why do std::shared_ptr work
I found some code using std::shared_ptr to perform arbitrary cleanup at shutdown. At first I thought this code could not possibly work, but then I tried the following:
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Simplest two-way encryption using PHP
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You should also mention that Mcrypt has be depreciated since PHP 7.1.0 and removed as of PHP 7.2.0.
– Jonathan J. Pecany
Sep 9 at 3:06
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What is Normalisation (or Normalization)?
... a database schema such that duplicate and redundant data is avoided. If some piece of data is duplicated several places in the database, there is the risk that it is updated in one place but not the other, leading to data corruption.
There is a number of normalization levels from 1. normal form t...