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Array vs. Object efficiency in JavaScript
... 'test' };
a1.push({id: newNo, name: 'test'});
}
Original Post - Explanation
There are some misconceptions in your question.
There are no associative arrays in Javascript. Only Arrays and Objects.
These are arrays:
var a1 = [1, 2, 3];
var a2 = ["a", "b", "c"];
var a3 = [];
a3[0] = "a";
...
How to overcome TypeError: unhashable type: 'list'
...res that the file is properly closed when you're done
with open('filename.txt', 'rb') as f:
d = {}
# Here we use readlines() to split the file into a list where each element is a line
for line in f.readlines():
# Now we split the file on `x`, since the part before the x will be
# the k...
Pagination in a REST web application
...ame resource(s).
E.g. A customer stores a link to the product list page X, next time the link is opened the product in question might no longer be on page X.
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What's the point of const pointers?
...ror because you're changing the value to ptr. Adding restrictions via syntax is a good thing in general. Just don't take it too far -- the example you gave is a case where most people don't bother using const.
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Is it possible to adjust x,y position for titleLabel of UIButton?
Is it possible to adjust the x,y position for the titleLabel of a UIButton ?
4 Answers
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How can I copy the output of a command directly into my clipboard?
... just in case anyone else needs it.
First install a 16 kB program called xclip:
sudo apt-get install xclip
You can then pipe the output into xclip to be copied into the clipboard:
cat file | xclip
To paste the text you just copied, you shall use:
xclip -o
To simplify life, you can set up ...
How does HTTP file upload work?
...tent-Type: multipart/form-data; boundary=----WebKitFormBoundaryePkpFF7tjBAqx29L
------WebKitFormBoundaryePkpFF7tjBAqx29L
Content-Disposition: form-data; name="MAX_FILE_SIZE"
100000
------WebKitFormBoundaryePkpFF7tjBAqx29L
Content-Disposition: form-data; name="uploadedfile"; filename="hello.o"
Cont...
How to prove that a problem is NP complete?
...te a polynomial time algorithm V that will verify for every possible input X whether X is in your domain or not.
Example
Prove that the problem of vertex covers (that is, for some graph G, does it have a vertex cover set of size k such that every edge in G has at least one vertex in the cover set?) ...
What does the X-SourceFiles header do?
...
The header is understood by certain debugging modules in IIS / IIS Express. It contains the base64-encoded path to the source file on disk and is used to link a page's generated output back to that source file. It's only generated for localhost requests, so you don't need to worry about it ...
How can I programmatically get the MAC address of an iphone
...
NOTE As of iOS7, you can no longer retrieve device MAC addresses. A fixed value will be returned rather than the actual MAC
Somthing I stumbled across a while ago. Originally from here I modified it a bit and cleaned things up.
IPAddress.h
IPAddress.c
And to use it
InitAddresses();
GetIP...