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Getting the docstring from a function
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251
Interactively, you can display it with
help(my_func)
Or from code you can retrieve it with
m...
How do I show a MySQL warning that just happened?
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answered Aug 1 '09 at 3:22
zombatzombat
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Determining whether jQuery has not found any element
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189
$('#idThatDoesnotexist').length is what you're looking for. (If it finds nothing, this will ==...
How to set a Javascript object values dynamically?
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152
myObj[prop] = value;
That should work. You mixed up the name of the variable and its value. ...
Why is it faster to check if dictionary contains the key, rather than catch the exception in case it
...essing a value in a dictionary by its key is cheap, because it's a fast, O(1) operation.
BTW: The correct way to do this is to use TryGetValue
obj item;
if(!dict.TryGetValue(name, out item))
return null;
return item;
This accesses the dictionary only once instead of twice.
If you really want...
What's the role of GetHashCode in the IEqualityComparer in .NET?
... boxes = new Dictionary<Box, string>(boxEqC);
Box redBox = new Box(100, 100, 25);
Box blueBox = new Box(1000, 1000, 25);
boxes.Add(redBox, "red");
boxes.Add(blueBox, "blue");
Using the BoxEqualityComparer.GetHashCode method in your example, both of these boxes have the same hashcode - 1...
Is there a difference between single and double quotes in Java?
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149
Use single quotes for literal chars, double quotes for literal Strings, like so:
char c = 'a'...
Difference between document.addEventListener and window.addEventListener?
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165
The document and window are different objects and they have some different events. Using addE...
WPF Command Line
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159
First, find this attribute at the top of your App.xaml file and remove it:
StartupUri="Window...
Non-CRUD operations in a RESTful service
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edited Sep 10 '15 at 18:11
whoan
7,07344 gold badges3333 silver badges4545 bronze badges
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