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Remove last item from array
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Doesn't work for one-element arrays: [1].splice(-1, 1) => [1]
– Tvaroh
Nov 1 '14 at 8:38
144
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Immutable vs Mutable types
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What? Floats are immutable? But can't I do
x = 5.0
x += 7.0
print x # 12.0
Doesn't that "mut" x?
Well you agree strings are immutable right? But you can do the same thing.
s = 'foo'
s += 'bar'
print s # foobar
The value of the variable changes, but it change...
Best way to do multiple constructors in PHP
...ruct functions with unique argument signatures in a PHP class. I'd like to do this:
21 Answers
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Understanding Spring @Autowired usage
I am reading the spring 3.0.x reference documentation to understand Spring Autowired annotation:
3 Answers
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How do I pass variables and data from PHP to JavaScript?
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There are actually several approaches to do this. Some require more overhead than others, and some are considered better than others.
In no particular order:
Use AJAX to get the data you need from the server.
Echo the data into the page somewhere, and use JavaScr...
How do I test a private function or a class that has private methods, fields or inner classes?
How do I unit test (using xUnit) a class that has internal private methods, fields or nested classes? Or a function that is made private by having internal linkage ( static in C/C++) or is in a private ( anonymous ) namespace?
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How do you check whether a number is divisible by another number (Python)?
...rom 1 to 1000 is a multiple of 3 or a multiple of 5. The way I thought I'd do this would be to divide the number by 3, and if the result is an integer then it would be a multiple of 3. Same with 5.
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What is the use case of noop [:] in bash?
...e return value is important, for example in an infinite loop:
while true; do
echo 'Going on forever'
done
It's traditional to use : when the shell syntax requires a command but you have nothing to do.
while keep_waiting; do
: # busy-wait
done
The : builtin dates all the way back to the Tho...
Best way to create an empty object in JSON with PHP?
To create an empty JSON object I do usually use:
7 Answers
7
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Replace String in all files in Eclipse
Do you know how can I search an replace a String in all files of my current project?
10 Answers
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