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javascript set a variable if undefined
...ontext here is always comparing to undefined. So === will work 100% of the time, not just 98%. The advantage of === being it is easier to read, especially at a glance, shorter and avoids an unnecessary method call. Personally I would only use Object.is() when the situation requires it and prefer ===...
How to find the largest file in a directory and its subdirectories?
We're just starting a UNIX class and are learning a variety of Bash commands. Our assignment involves performing various commands on a directory that has a number of folders under it as well.
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How to “log in” to a website using Python's Requests module?
I am trying to post a request to log in to a website using the Requests module in Python but its not really working. I'm new to this...so I can't figure out if I should make my Username and Password cookies or some type of HTTP authorization thing I found (??).
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How do I filter an array with AngularJS and use a property of the filtered object as the ng-model at
...es not update the existing array it will return a new filtered array every time.
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Installing PIL with pip
I am trying to install PIL (the Python Imaging Library) using the command:
21 Answers
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Android: Remove all the previous activities from the back stack
...r all your application's activities when you use the logout button.
Every time you start an Activity, start it like this:
Intent myIntent = new Intent(getBaseContext(), YourNewActivity.class);
startActivityForResult(myIntent, 0);
When you want to close the entire app, do this:
setResult(RESULT_...
Should I implement __ne__ in terms of __eq__ in Python?
...think these performance numbers speak for themselves:
>>> import timeit
>>> min(timeit.repeat(c_level()))
0.09377292497083545
>>> min(timeit.repeat(high_level_python()))
0.2654011140111834
>>> min(timeit.repeat(low_level_python()))
0.3378178110579029
This makes...
Strip whitespace from jsp output
...and also remove newlines (carriage returns) between the html tags at build time.
E.g. change:
<p>Hello</p>
<p>How are you?</p>
into:
<p>Hello</p><p>How are you?</p>
Do do that, use the maven-replacer-plugin and set it up in pom.xml:
<plugin&...
How do I run a simple bit of code in a new thread?
...es data to disk. But sure, if your task is suitable for termination at any time, the flag is fine. My point was just that one needs to be careful about using the flag, since you did not describe its purpose, and its naming could easily lead one to believe that it does something else than what it act...
Why does Vim save files with a ~ extension?
...o conflict in case of two files having the same name, see comments (at the time of this edit this option is only honored for swap files, not yet for backup files). The ,. allow vim to use the current directory if the former doesn't exist.
You have to create a directory in your home directory called...