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Quick Way to Implement Dictionary in C
One of the things which I miss while writing programs in C is a dictionary data structure. What's the most convenient way to implement one in C? I am not looking for performance, but ease of coding it from scratch. I don't want it to be generic either -- something like string->int will do. But I do ...
Add a tooltip to a div
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For the basic tooltip, you want:
<div title="This is my tooltip">
For a fancier javascript version, you can look into:
https://jqueryhouse.com/best-jquery-tooltip-plugins/
The above link gives you 25 options for tooltips.
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How to use JUnit to test asynchronous processes
How do you test methods that fire asynchronous processes with JUnit?
17 Answers
17
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What Makes a Method Thread-safe? What are the rules?
...ethod thread-safe? I understand that there are probably a million one-off situations, but what about in general? Is it this simple?
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How to keep keys/values in same order as declared?
I have a dictionary that I declared in a particular order and want to keep it in that order all the time. The keys/values can't really be kept in order based on their value, I just want it in the order that I declared it.
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Ideal way to cancel an executing AsyncTask
... instead of making a boolean flag for running , couldn't you remove it and make this while(!isCanceled())???
– confucius
Feb 28 '12 at 9:06
36
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Is there “0b” or something similar to represent a binary number in Javascript
...inary (prefix 0b), octal (prefix 0o) and hexadecimal (prefix: 0x) numeric literals:
var bin = 0b1111; // bin will be set to 15
var oct = 0o17; // oct will be set to 15
var oxx = 017; // oxx will be set to 15
var hex = 0xF; // hex will be set to 15
// note: bB oO xX are all valid...
Force update of an Android app when a new version is available
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I agree with Scott Helme's point in another answer here. But in some extreme situations (security issues, API breaking changes...) where you absolutely need the users to update to continue using the app, you could provide a simple ver...
Generating an MD5 checksum of a file
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You can use hashlib.md5()
Note that sometimes you won't be able to fit the whole file in memory. In that case, you'll have to read chunks of 4096 bytes sequentially and feed them to the md5 method:
import hashlib
def md5(fname):
hash_md5 = hashlib.md5()
with open(fname, "rb") as f:
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The simplest way to comma-delimit a list?
What is the clearest way to comma-delimit a list in Java?
30 Answers
30
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