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Emacs - Multiple columns one buffer
...ame with just one window, split it into two side-by-side windows using C-x 3, and then type M-x follow-mode. From then on, you can edit the buffer in either of the two windows, or scroll either one; the other window follows it.
In Follow mode, if you move point outside the portion visible in one wi...
Collisions when generating UUIDs in JavaScript?
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35
My best guess is that Math.random() is broken on your system for some reason (bizarre as that s...
Bootstrap table striped: How do I change the stripe background colour?
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danday74
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answered Dec 29 '13 at 12:40
FlorinFlor...
How can I capture the result of var_dump to a string?
...
13 Answers
13
Active
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How to convert a string or integer to binary in Ruby?
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375
You have Integer#to_s(base) and String#to_i(base) available to you.
Integer#to_s(base) conver...
How to Sort Multi-dimensional Array by Value?
...er'] - $b['order'];
}
usort($myArray, 'sortByOrder');
Starting in PHP 5.3, you can use an anonymous function:
usort($myArray, function($a, $b) {
return $a['order'] - $b['order'];
});
And finally with PHP 7 you can use the spaceship operator:
usort($myArray, function($a, $b) {
return $...
Install go with brew, and running the gotour
...t/go/libexec
export PATH=$PATH:$GOPATH/bin
export PATH=$PATH:$GOROOT/bin
3) Install Go
brew install go
4) "go get" the basics
go get golang.org/x/tools/cmd/godoc
5) Start here: https://golang.org/doc/code.html at "your first program"
...
Error while installing json gem 'mkmf.rb can't find header files for ruby'
...ll ruby2.0-dev
sudo apt-get install ruby2.2-dev
sudo apt-get install ruby2.3-dev
or, generic way:
sudo apt-get install ruby-dev
or
sudo apt-get install ruby`ruby -e 'puts RUBY_VERSION[/\d+\.\d+/]'`-dev
The first link you’ve posted is exactly your case: there is no ruby development...
How to implement a binary tree?
... print(str(node.v) + ' ')
self._printTree(node.r)
# 3
# 0 4
# 2 8
tree = Tree()
tree.add(3)
tree.add(4)
tree.add(0)
tree.add(8)
tree.add(2)
tree.printTree()
print(tree.find(3).v)
print(tree.find(10))
tree.deleteTree()
tree.printTree()
...
What is the difference between “INNER JOIN” and “OUTER JOIN”?
...ables, with a single column each, and data as follows:
A B
- -
1 3
2 4
3 5
4 6
Note that (1,2) are unique to A, (3,4) are common, and (5,6) are unique to B.
Inner join
An inner join using either of the equivalent queries gives the intersection of the two tables, i.e. the two r...