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What is the difference between tree depth and height?
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691
I learned that depth and height are properties of a node:
The depth of a node is the number of...
Using git to get just the latest revision
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Use git clone with the --depth option set to 1 to create a shallow clone with a history truncated to the latest commit.
For example:
git clone --depth 1 https://github.com/user/repo.git
To also initialize and update any nested submodules, also pass --recurse-submodules...
Why should I use var instead of a type? [duplicate]
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110
It's really just a coding style. The compiler generates the exact same for both variants.
See...
Drop unused factor levels in a subsetted data frame
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Initialising an array of fixed size in python [duplicate]
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11 Answers
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Is there any particular difference between intval and casting to int - `(int) X`?
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193
intval() can be passed a base from which to convert. (int) cannot.
int intval( mixed $var [,...
How to update the value stored in Dictionary in C#?
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edited Nov 28 '12 at 11:12
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Trying to embed newline in a variable in bash [duplicate]
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176
Summary
Inserting \n
p="${var1}\n${var2}"
echo -e "${p}"
Inserting a new line in the sourc...
On Duplicate Key Update same as insert
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Alternatively, you can use:
INSERT INTO table (id,a,b,c,d,e,f,g)
VALUES (1,2,3,4,5,6,7,8)
ON DUPLICATE KEY
UPDATE a=a, b=b, c=c, d=d, e=e, f=f, g=g;
To get the id from LAST_INSERT_ID; you need to specify the backend app you're using for the same.
For LuaSQL, a conn:getlastautoid() fetches ...
Convert python datetime to epoch with strftime
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415
If you want to convert a python datetime to seconds since epoch you could do it explicitly:
&g...