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What is tail recursion?
...cursion, the typical model is that you perform your recursive calls first, and then you take the return value of the recursive call and calculate the result. In this manner, you don't get the result of your calculation until you have returned from every recursive call.
In tail recursion, you perfor...
How to trim leading and trailing white spaces of a string?
Which is the effective way to trim the leading and trailing white spaces of string variable in Go?
7 Answers
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Printing the last column of a line in a file
...ed. tail -f means wait for more input, but there are no more lines in file and so the pipe to grep is never closed.
If you omit -f from tail the output is shown immediately:
tail file | grep A1 | awk '{print $NF}'
@EdMorton is right of course. Awk can search for A1 as well, which shortens the ...
How to move columns in a MySQL table?
...the structure view of a table.
Check to select the column you want to move and click the change action at the bottom of the column list.
You can then change all of the column properties and you'll find the 'move column' function at the far right of the screen.
Of course this is all just building th...
How Big can a Python List Get?
...ognize them because of the asterix at the end) . Pointers are 4 bytes long and store a memory address to the allocated object. They are "only" 4 bytes long because with 4 bytes you can address every element in a memory of nowadays computers.
– Antonio Ragagnin
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What's the point of 'meta viewport user-scalable=no' in the Google Maps API
I'm using the Google Maps JavaScript API V3 and the official examples always have you include this meta tag:
4 Answers
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Reading a binary file with python
...particularly difficult reading binary file with Python. Can you give me a hand?
I need to read this file, which in Fortran 90 is easily read by
...
Why does ('0' ? 'a' : 'b') behave different than ('0' == true ? 'a' : 'b') [duplicate]
...tion, section 11.9.3, The Abstract Equality Comparison Algorithm.
The operands are denoted as x and y (x == y).
In our case, x is a string ('0') and y is a Boolean (true). Hence step 7 is executed:
If Type(y) is Boolean, return the result of the comparison x == ToNumber(y).
When booleans ar...
Command to collapse all sections of code?
In Visual Studio is there a command to collapse/expand all the sections of code in a file?
20 Answers
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File Explorer in Android Studio
Can anyone tell where the file explorer is located in Android Studio?
18 Answers
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