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How can I check if a file exists in Perl?
...ristic guess).
-B
File is a “binary” file (opposite of -T).
-M
Script start time minus file modification time, in days.
-A
Same for access time.
-C
Same for inode change time (Unix, may differ for other platforms)
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How to add an object to an array
How can I add an object to an array (in javascript or jquery)?
For example, what is the problem with this code?
13 Answ...
How to list all installed packages and their versions in Python?
...e output from pip list is formatted differently, so if you have some shell script that parses the output (maybe to grab the version number) of freeze and want to change your script to call list, you'll need to change your parsing code.
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Is it possible to listen to a “style change” event?
...rd/y2q8wuf0 (unfortunately there appears to be a bug in FF that hangs the script at HTMLElement.style.prop = "value"
– RyanNerd
Aug 31 '17 at 8:10
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In Rails - is there a rails method to convert newlines to ?
...s basic HTML tags, but also passes text through sanitize which removes all scripts, so it should be safe for user input.
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How to get the body's content of an iframe in Javascript?
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The exact question is how to do it with pure JavaScript not with jQuery.
But I always use the solution that can be found in jQuery's source code.
It's just one line of native JavaScript.
For me it's the best, easy readable and even afaik the shortest way to get the iframe...
PHP session lost after redirect
...e opening <?php declaration.
After the header redirect, end the current script using exit(); (Others have also suggested session_write_close(); and session_regenerate_id(true), you can try those as well, but I'd use exit();)
Make sure cookies are enabled in the browser you are using to test it on...
django change default runserver port
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create a bash script with the following:
#!/bin/bash
exec ./manage.py runserver 0.0.0.0:<your_port>
save it as runserver in the same dir as manage.py
chmod +x runserver
and run it as
./runserver
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How to turn off INFO logging in Spark?
...he AWS EC2 guide and I can launch the program fine using the bin/pyspark script to get to the spark prompt and can also do the Quick Start quide successfully.
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Testing service in Angular returns module is not defined
...e same problem, and I understood why it wasn't working:
The jasmine.js javascript must be referenced BEFORE the angular-mocks.js file.
Indeed, the angular-mocks.js checks if Jasmine is loaded, and only if it is it will add the module function to the window.
Here is an extract of Angular Mocks code:...