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What does the Java assert keyword do, and when should it be used?
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@hoodaticus you mean solely the fact that I can turn on/off all assertions for prod code is the reason? Because I can do complex data validation anyways and then handle it with exceptions. If I have production code, I could turn off the comp...
What does “atomic” mean in programming?
...es the first 32 bits, and a second one which writes the last 32 bits. That means that another thread might read the value of foo, and see the intermediate state.
Making the operation atomic consists in using synchronization mechanisms in order to make sure that the operation is seen, from any othe...
Open file via SSH and Sudo with Emacs
...as been layered on top of the modern tramp-default-proxies-alist approach, meaning that you can once again perform multi-hops without any prior configuration. For details, see:
C-hig (tramp)Ad-hoc multi-hops RET
With the new syntax, each 'hop' is separated by |. The example in the manual is:
C-xC-f ...
How to force Selenium WebDriver to click on element which is not currently visible?
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Sometimes this means there are multiple elements on a page that have the same property you're trying to search by and you're "talking to the wrong one".
If your element can't be uniquely identified by :id or :name (or :class), it could be ...
What is the standard naming convention for html/css ids and classes?
...e, even though I'll totally complain about it. Because not following that means changing a lot of files that vue-cli sets up.
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Heroku 'Permission denied (publickey) fatal: Could not read from remote repository' woes
...if heroku couldn't find a key and asked to generate one right no, and this mean you have the same issue as mine, do the add command like this heroku keys:add /root/.ssh/id_rsa.pub the path that you'll add will be the one that you got in step 2.
try git push heroku master now
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For loop for HTMLCollection elements
...sole output
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Explanation For Why You Should Not Use for/in
for/in is meant for iterating the properties of an object. That means it will return all iterable properties of an object. While it may appear to work for an array (returning array elements or pseudo-array elements), it can also retu...
Why do we need a fieldset tag?
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@Madmartigan — That is a good thing, it means that you know you are still dealing with the same set of radio buttons. (It is also a reason to ensure the legend is concise).
– Quentin
Mar 16 '12 at 17:01
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What does @hide mean in the Android source code?
...ttribute is just part of Javadoc (droiddoc also), so the @hide just simply means the method/class/field is excluded from the API docs.
For example, the checkUidPermission() method in ActivityManager.java uses @hide:
/** @hide */
public static int checkUidPermission(String permission, int uid) {
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How to compile a static library in Linux?
...and static library with the gnu compiler [gcc]
gcc -c -o out.o out.c
-c means to create an intermediary object file, rather than an executable.
ar rcs libout.a out.o
This creates the static library. r means to insert with replacement, c means to create a new archive, and s means to write an i...