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Concatenating two lists - difference between '+=' and extend()
I've seen there are actually two (maybe more) ways to concatenate lists in Python:
One way is to use the extend() method:
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Why does auto a=1; compile in C?
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What is the difference between a thread and a fiber?
...rating system can take advantage of multiple CPUs and CPU cores by running more than one thread at the same time and leaving it up to the developer to guard data access.
With fibers: the current execution path is only interrupted when the fiber yields execution (same note as above). This means that...
What does “use strict” do in JavaScript, and what is the reasoning behind it?
... Mode might interest you: John Resig - ECMAScript 5 Strict Mode, JSON, and More
To quote some interesting parts:
Strict Mode is a new feature in ECMAScript 5 that allows you to place a program, or a function, in a "strict" operating context. This strict context prevents certain actions from bei...
What is JSON and why would I use it?
...by Douglas Crockford), it has been the preferred format because it is much more lightweight
You can find a lot more info on the official JSON web site.
JSON is built on two structures:
A collection of name/value pairs. In various languages, this is realized as an object, record, struct, dictiona...
Determine if map contains a value for a key?
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How so? find indicates intent far better than count does. More over, count doesn't return the item. If you read the OP's question, he's wants to check for the existance, and return the element. find does that. count does not.
– Alan
May 23 '13 ...
Difference between malloc and calloc?
... doesn't need to write them in user-space. This is how normal malloc gets more pages from the OS as well; calloc just takes advantage of the OS's guarantee.
This means calloc memory can still be "clean" and lazily-allocated, and copy-on-write mapped to a system-wide shared physical page of zeros. ...
NSString tokenize in Objective-C
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thanks, but how to split a NSString that is separated by more tokens? (If you know what I mean, my English is not very good) @Adam
– 11684
Apr 9 '12 at 11:53
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How do I convert a string to a number in PHP?
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