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What is the difference between a.getClass() and A.class in Java?
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163
I wouldn't compare them in terms of pros/cons since they have different purposes and there's sel...
What is the difference between GitHub and gist?
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359
GitHub is the entire site. Gists are a particular service offered on that site, namely code sn...
Bash script processing limited number of commands in parallel
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332
Use the wait built-in:
process1 &
process2 &
process3 &
process4 &
wait
proce...
Why does ('0' ? 'a' : 'b') behave different than ('0' == true ? 'a' : 'b') [duplicate]
...ill take place here. We can follow this in the specification, section 11.9.3, The Abstract Equality Comparison Algorithm.
The operands are denoted as x and y (x == y).
In our case, x is a string ('0') and y is a Boolean (true). Hence step 7 is executed:
If Type(y) is Boolean, return the resul...
mongoose vs mongodb (nodejs modules/extensions), which better? and why?
...issing features, give Mongolian DeadBeef a try: https://github.com/marcello3d/node-mongolian
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default select option as blank
...ion>
<option>Option 2</option>
<option>Option 3</option>
</select>
-- select an option -- Will be displayed by default. But if you choose an option,you will not be able select it back.
You can also hide it using by adding an empty option
<option style=...
How do you split and unsplit a window/view in Eclipse IDE?
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319
This is possible with the menu items Window>Editor>Toggle Split Editor.
Current shortcu...
How does a hash table work?
...ticular title. If the size of the library is only 7 books, you count 1, 2, 3, 4, 5, 6, and when you get to 7, you start back at 0. Since we need to count 17 times, we have 1, 2, 3, 4, 5, 6, 0, 1, 2, 3, 4, 5, 6, 0, 1, 2, 3, and the final number is 3.
Of course modulus calculation isn't done like tha...
What does 'require: false' in Gemfile mean?
...1
sawa
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answered Jan 26 '11 at 1:51
Rob Di MarcoRo...
Get the first key name of a javascript object [duplicate]
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364
In Javascript you can do the following:
Object.keys(ahash)[0];
...