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What is the difference between ${var}, “$var”, and “${var}” in the Bash shell?
...out a subscript is equivalent to referencing the array with a subscript of 0.
In other words, if you don't supply an index with [], you get the first element of the array:
foo=(a b c)
echo $foo
# a
Which is exactly the same as
foo=(a b c)
echo ${foo}
# a
To get all the elements of an array, ...
Including a .js file within a .js file [duplicate]
....src = 'http://example.com/test.js';
document.getElementsByTagName("head")[0].appendChild(x);
You may also use onload event to each script you attach, but please test it out, I am not so sure it works cross-browser or not.
x.onload=callback_function;
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Convert hex color value ( #ffffff ) to integer value
...eiving hex color values from a server (in this form, #xxxxxx , example #000000 for black)
9 Answers
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Why doesn't Java allow overriding of static methods?
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answered Feb 8 '10 at 17:12
Nathan HughesNathan Hughes
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Node.js version on the command line? (not the REPL)
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1050
The command line for that is:
node -v
Or
node --version
Note:
If node -v doesn't work, ...
How to use string.replace() in python 3.x
...rams
667k127127 gold badges11911191 silver badges12501250 bronze badges
4
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Do AJAX requests retain PHP Session info?
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edited Nov 20 '12 at 3:50
answered Mar 24 '09 at 11:10
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Why are variables “i” and “j” used for counters?
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330
votes
+50
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Joining three tables using MySQL
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edited Jul 20 '17 at 5:26
Peter Mortensen
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C: differences between char pointer and array [duplicate]
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101
True, but it's a subtle difference. Essentially, the former:
char amessage[] = "now is the ti...