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What are the differences between JSON and JavaScript object? [duplicate]
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First you should know what JSON is:
It is language agnostic data-interchange format.
The syntax of JSON was inspired by the JavaScript Object Literal notation, but there are differences between them.
For example, in JSON all keys must be ...
Pretty-Print JSON Data to a File using Python
...None,
headers=None, force_auth_header=True)
# now write output to a file
twitterDataFile = open("twitterData.json", "w")
# magic happens here to make it pretty-printed
twitterDataFile.write(simplejson.dumps(simplejson.loads(output), indent=4, sort_keys=True))
twitterData...
Assigning default values to shell variables with a single command in bash
... builtin to eat the expansion of the ${..} BUT leaving VARIABLE set. Until now I was doing this: VARIABLE="${VARIABLE:-DEFAULT_VALUE}" and feeling dorky for using VARIABLE twice.
– dino
Oct 6 '15 at 18:06
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Python csv string to array
Anyone know of a simple library or function to parse a csv encoded string and turn it into an array or dictionary?
10 Answe...
Chain-calling parent initialisers in python [duplicate]
...l return the init method of your obj as if init in class X not been there. Now, if class X has two parents, and X.__init__ doesnt exist, the default behavior is to call init of only one of the parents, not both. This is effectively what super is doing... giving you one of the parents.
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Code snippet or shortcut to create a constructor in Visual Studio
...out the quotes), IntelliSense should load, showing you "ctor" in the list. Now press TAB twice, and you should have generated an empty constructor.
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Why is it not advisable to have the database and web server on the same machine?
.... If, on the other hand, your database is on the same server, the attacker now has root access to your data and server.
Scalability. Keeping your web server stateless allows you to scale your web servers horizontally pretty much effortlessly. It is very difficult to horizontally scale a database ser...
Choosing between qplot() and ggplot() in ggplot2 [closed]
...o the console 15 minutes earlier, I write almost all of them into a script now - so I use ggplot almost all of the time.
(Interesting to see the diversity of answers!)
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What is the purpose of the var keyword and when should I use it (or omit it)?
...perty on a global object (which is a top level object in a scope chain).
Now, notice that it doesn't declare a global variable, it creates a global property.
The difference between the two is subtle and might be confusing unless you understand that variable declarations also create properties (on...
PostgreSQL: How to change PostgreSQL user password?
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To Change Password
sudo -u postgres psql
then
\password postgres
now enter New Password and Confirm
then \q to exit
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