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Remove substring from the string
...ice! "foo"
=> "foo"
a
=> "bar"
there is a non '!' version as well. More info can be seen in the documentation about other versions as well:
http://www.ruby-doc.org/core/classes/String.html#method-i-slice-21
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Best way to obfuscate an e-mail address on a website?
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84
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How can I drop all the tables in a PostgreSQL database?
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419
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What is the use of hashCode in Java?
...ode of the element, then look for the bucket where hash code points to. If more than 1 element is found in the same bucket (multiple objects can have the same hash code), then it uses the equals() method to evaluate if the objects are equal, and then decide if contains() is true or false, or decide ...
Using print statements only to debug
... run your code with or without logging.
The standard logging module has a more elaborate mechanism for this.
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What is reflection and why is it useful?
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How to get the source directory of a Bash script from within the script itself?
...e care of both possibilities.
To understand how it works, try running this more verbose form:
#!/bin/bash
SOURCE="${BASH_SOURCE[0]}"
while [ -h "$SOURCE" ]; do # resolve $SOURCE until the file is no longer a symlink
TARGET="$(readlink "$SOURCE")"
if [[ $TARGET == /* ]]; then
echo "SOURCE '$...
What do single quotes do in C++ when used on multiple characters?
...3/1 - Character literals
(...) An ordinary character literal that contains more than
one c-char is a multicharacter literal . A multicharacter literal has type int and implementation-defined
value.
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How do I convert between big-endian and little-endian values in C++?
...values they work for signed integers as well.
For floats and doubles it's more difficult as with plain integers as these may or not may be in the host machines byte-order. You can get little-endian floats on big-endian machines and vice versa.
Other compilers have similar intrinsics as well.
In ...