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What does a b prefix before a python string mean?
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This is Python3 bytes literal. This prefix is absent in Python 2.5 and older (it is equivalent to a plain string of 2.x, while plain string of 3.x is equivalent to a literal with u prefix in 2.x). In Python 2.6+ it is equivalent to a plain string, ...
ReactJS render string with non-breaking spaces
...have some props that has a string that could contain characters such as &.
It also contains spaces. I want to replace all spaces with   .
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What's the difference between NOT EXISTS vs. NOT IN vs. LEFT JOIN WHERE IS NULL?
It seems to me that you can do the same thing in a SQL query using either NOT EXISTS, NOT IN, or LEFT JOIN WHERE IS NULL. For example:
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Inserting a tab character into text using C#
...ing an application where I should capture several values and build a text with them: Name , Age , etc.
9 Answers
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Is there a python equivalent of Ruby's 'rvm'?
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Yes, it is virtualenv along with virtualenvwrapper.
update: you may install both at once with virtualenv burrito.
Update: the correct answer is now probably pyenv.
For scientific computing, the corresponding tool is anaconda.
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What does the * * CSS selector do?
...s is what I was thinking for but not sure so thought to ask from the community..will accept it soon +1
– swapnesh
Mar 25 '13 at 4:57
1
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@UniqueConstraint annotation in Java
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To ensure a field value is unique you can write
@Column(unique=true)
String username;
The @UniqueConstraint annotation is for annotating multiple unique keys at the table level, which is why you get an error when applying it to a field.
References (JPA TopLink):
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Group by in LINQ
...follow
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edited Apr 6 at 15:26
iliketocode
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How can I programmatically generate keypress events in C#?
...ls or Windows internals and should be much more reliable than the others. It also allows you to simulate a keypress on a specific element.
Note that this code is only applicable to PreviewKeyDown, KeyDown, PreviewKeyUp, and KeyUp events. If you want to send TextInput events you'll do this instead:...
Not class selector in jQuery
Is there a simple selector expression to not select elements with a specific class?
2 Answers
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