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Apply .gitignore on an existing repository already tracking large number of files
I have an existing Visual Studio project in my repository. I recently added a .gitignore file under my project and I assume that tells Git to ignore the files listed in the file.
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Creating a new user and password with Ansible
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user: root
vars:
# created with:
# python -c 'import crypt; print crypt.crypt("This is my Password", "$1$SomeSalt$")'
password: $1$SomeSalt$UqddPX3r4kH3UL5jq5/ZI.
tasks:
- user: name=tset password={{password}}
If your playbook or ansible command line has your password as-is...
Python - How to sort a list of lists by the fourth element in each list? [duplicate]
I would like to sort the following list of lists by the fourth element (the integer) in each individual list.
2 Answers
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Using Default Arguments in a Function
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I would propose changing the function declaration as follows so you can do what you want:
function foo($blah, $x = null, $y = null) {
if (null === $x) {
$x = "some value";
}
if (null === $y) {
$y = "some other value"...
How to overcome “datetime.datetime not JSON serializable”?
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Updated for 2018
The original answer accommodated the way MongoDB "date" fields were represented as:
{"$date": 1506816000000}
If you want a generic Python solution for serializing datetime to json, check out @jjmontes' answer for a quick solution w...
How to debug template binding errors for KnockoutJS?
I keep having trouble with debugging problems in KnockoutJS templates.
12 Answers
12
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Reducing MongoDB database file size
I've got a MongoDB database that was once large (>3GB). Since then, documents have been deleted and I was expecting the size of the database files to decrease accordingly.
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How to calculate moving average without keeping the count and data-total?
I am trying to find a way to calculate a moving cumulative average without storing the count and total data that is received so far.
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How do I exit the Vim editor?
...the Esc key to enter "Normal mode". Then you can type : to enter "Command-line mode". A colon (:) will appear at the bottom of the screen and you can type in one of the following commands. To execute a command, press the Enter key.
:q to quit (short for :quit)
:q! to quit without saving (short fo...
Test if number is odd or even
What is the simplest most basic way to find out if a number/variable is odd or even in PHP?
Is it something to do with mod?
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