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Difference between single and double square brackets in Bash
...h manual section on conditional constructs.
Use [] whenever you want your script to be portable across shells. Use [[]] if you want conditional expressions not supported by [] and don't need to be portable.
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How to get current formatted date dd/mm/yyyy in Javascript and append it to an input [duplicate]
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This is helpful, but confirms that Javascript is insanely inefficient at getting a formatted date returned. It's unfathomable to have to write more than one line of code to do this...
– jlbriggs
Sep 11 '15 at 13:26
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jQuery .data() does not work, but .attr() does
... length of the selectors after they've been set, jsbin.com/acegef/edit#javascript,html,live
– Ian Davis
Jan 3 '12 at 20:34
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What are Makefile.am and Makefile.in?
...generate the Makefile.in file (the .am stands for automake).
The configure script typically seen in source tarballs will use the Makefile.in to generate a Makefile.
The configure script itself is generated from a programmer-defined file named either configure.ac or configure.in (deprecated). I pref...
Google Docs/Drive - number the headings
...e below fixed to handle new Docs HEADING identification.
I modified the script mentioned by Mikko Ohtamaa and created a Google Apps Script that adds a Headings tools Document menu that allows you to:
auto number Heading
clear Headings numbers
How to auto number Google Documents Headings:
O...
Import a module from a relative path
...a safe solution for inclusion of modules relatively to the location of the script.
I assume that you want to do this, because you need to include a set of modules with your script. I use this in production in several products and works in many special scenarios like: scripts called from another dir...
Pretty-Printing JSON with PHP
I'm building a PHP script that feeds JSON data to another script. My script builds data into a large associative array, and then outputs the data using json_encode . Here is an example script:
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What is output buffering?
..., your HTML is sent to the browser in pieces as PHP processes through your script. With output buffering, your HTML is stored in a variable and sent to the browser as one piece at the end of your script.
Advantages of output buffering for Web developers
Turning on output buffering alone decreases t...
simulate background-size:cover on or
... over for a while, but I came across a great solution that doesn't use any script, and can achieve a perfect cover simulation on video with 5 lines of CSS (9 if you count selectors and brackets). This has 0 edge-cases in which it doesn't work perfectly, short of CSS3-compatibility.
You can see an e...
What does “SyntaxError: Missing parentheses in call to 'print'” mean in Python?
...t(f"string")...
But after some time of debugging I realized that my bash script was calling python like:
python file_name.py
which had the effect of calling my python script by default using python2.7 which gave the error. So I changed my bash script to:
python3 file_name.py
which of ...