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How to see the changes in a Git commit?
When I do git diff COMMIT I see the changes between that commit and HEAD (as far as I know), but I would like to see the changes that were made by that single commit.
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Get selected value in dropdown list using JavaScript
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edited Nov 5 '14 at 15:53
stanleyxu2005
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Remove all special characters, punctuation and spaces from string
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This can be done without regex:
>>> string = "Special $#! characters spaces 888323"
>>> ''.join(e for e in string if e.isalnum())
'Specialcharactersspaces888323'
You can use str.isalnum:
S.isalnum() -> bool
Return ...
In Ruby on Rails, what's the difference between DateTime, Timestamp, Time and Date?
... experience, getting dates/times right when programming is always fraught with danger and difficulity.
3 Answers
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How to print instances of a class using print()?
...rint(t)
member of Test
The __str__ method is what happens when you print it, and the __repr__ method is what happens when you use the repr() function (or when you look at it with the interactive prompt). If this isn't the most Pythonic method, I apologize, because I'm still learning too - but it w...
Concatenating two one-dimensional NumPy arrays
...py.concatenate((a1, a2, ...), axis=0)
Join a sequence of arrays together.
It was trying to interpret your b as the axis parameter, which is why it complained it couldn't convert it into a scalar.
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Fetch frame count with ffmpeg
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Note: The presence of an edit list in MP4/M4V/M4A/MOV can affect your frame number. See Edit lists below.
ffprobe: Query the container
ffprobe -v error -select_streams v:0 -show_entries stream=nb_frames -of default=nokey=1:noprint_wrappers=1 input....
How do you find the sum of all the numbers in an array in Java?
...um();
System.out.println("The sum is " + sum);
Output:
The sum is 150.
It's in the package java.util.stream
import java.util.stream.*;
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How to convert decimal to hexadecimal in JavaScript
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Convert a number to a hexadecimal string with:
hexString = yourNumber.toString(16);
And reverse the process with:
yourNumber = parseInt(hexString, 16);
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What is the difference between an int and an Integer in Java and C#?
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In Java, the 'int' type is a primitive, whereas the 'Integer' type is an object.
In C#, the 'int' type is the same as System.Int32 and is a value type (ie more like the java 'int'). An integer (just like any other value types) can be boxed ("wrapped") into ...