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How do I return to an older version of our code in Subversion?
...nd the right revision number.
Note down the good revision number (assuming 123 for examples below).
Update to the latest revision:
svn update
Undo all the changes between the revision you want and the latest version:
svn merge -r HEAD:123 .
svn commit "Reverted to revision 123"
(the same as Jon...
How to rename with prefix/suffix?
...
123
In Bash and zsh you can do this with Brace Expansion. This simply expands a list of items in ...
How do I check if a number evaluates to infinity?
...
You can use isFinite in window, isFinite(123):
You can write a function like:
function isInfinite(num) {
return !isFinite(num);
}
And use like:
isInfinite(null); //false
isInfinite(1); //false
isInfinite(0); //false
isInfinite(0.00); //false
isInfinite(NaN); /...
How to convert String to long in Java?
...g -> Long, Long.valueOf(primitiveLong). So Long number = Long.valueOf("123"), Long number = Long.parseLong("123") and Long number = Long.valueOf(Long.parseString("123") all end up doing pretty much the same thing. What you do want to be careful about is not calling constructors of the boxed pri...
Android存储系统基础知识：内部存储，外部存储，App特定目录 ASD(app speci...
... 隐私策略和使用条款 技术支持 service@fun123.cn
How to capitalize the first letter in a String in Ruby
..."hello".capitalize #=> "Hello"
"HELLO".capitalize #=> "Hello"
"123ABC".capitalize #=> "123abc"
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How do I create multiple submit buttons for the same form in Rails?
...
Similar solution to one suggested by @vss123 without using any gems:
resources :plan do
post :save, constraints: lambda {|req| req.params.key?(:propose)}, action: :propose
post :save, constraints: lambda {|req| req.params.key?(:finalize)}, action: :finalize
end...
Convert text into number in MySQL query
...
You can use CAST() to convert from string to int. e.g. SELECT CAST('123' AS INTEGER);
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What is the reason for having '//' in Python? [duplicate]
...edited Feb 20 '15 at 6:52
Rizier123
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answered Feb 20 '15 at 6:35
...
Rename a dictionary key
...n entirely new one using a comprehension.
>>> OrderedDict(zip('123', 'abc'))
OrderedDict([('1', 'a'), ('2', 'b'), ('3', 'c')])
>>> oldkey, newkey = '2', 'potato'
>>> OrderedDict((newkey if k == oldkey else k, v) for k, v in _.viewitems())
OrderedDict([('1', 'a'), ('pota...