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Hidden features of Python [closed]
What are the lesser-known but useful features of the Python programming language?
191 Answers
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if arguments is equal to this string, define a variable like this string
I am doing some bash script and now I got one variable call source and one array called samples , like this:
3 Answers
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Difference between SRC and HREF
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apnerve's answer was correct before HTML 5 came out, now it's a little more complicated.
For example, the script element, according to the HTML 5 specification, has two global attributes which change how the src attribute functions: async and defer. These change how the script...
How do you add an action to a button programmatically in xcode
I know how to add an IBAction to a button by dragging from the interface builder, but I want to add the action programmatically to save time and to avoid switching back and forth constantly. The solution is probably really simple, but I just can't seem to find any answers when I search it. Thank you...
How to calculate an angle from three points? [closed]
... answer, I posted before thinking my problem through. I got it figured out now, though.
– nicoco
Sep 28 '17 at 15:11
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int a[] = {1,2,}; Weird comma allowed. Any particular reason?
...mmas. Basically it means there's a uniformity in how you treat the lines.
Now think about generating code. Something like (pseudo-code):
output("int a[] = {");
for (int i = 0; i < items.length; i++) {
output("%s, ", items[i]);
}
output("};");
No need to worry about whether the current ite...
Why do you create a View in a database?
...pected cost of fixing it later is more than the definite cost of fixing it now.
– Mr. Boy
Feb 8 '10 at 9:19
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Why start an ArrayList with an initial capacity?
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If you know in advance what the size of the ArrayList is going to be, it is more efficient to specify the initial capacity. If you don't do this, the internal array will have to be repeatedly reallocated as the list grows.
The large...
Best way to define error codes/strings in Java?
...g or whatever*/ id();
}
public interface IMessage {
ICode code();
}
Now you can define any number of enums which provide me
Why is it string.join(list) instead of list.join(string)?
...ace UCS2/4. To calculate total buffer length of UTF-8 strings it needs to know character coding rule.
At that time, Python had already decided on a common sequence interface rule where a user could create a sequence-like (iterable) class. But Python didn't support extending built-in types until 2.2....