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How to listen for changes to a MongoDB collection?
...time, or is there a way my script can wait for inserts to occur? This is a PHP project that I am working on, but feel free to answer in Ruby or language agnostic.
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Catch multiple exceptions in one line (except block)
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How do I catch multiple exceptions in one line (except block)
Do this:
try:
may_raise_specific_errors():
except (SpecificErrorOne, SpecificErrorTwo) as error:
handle(error) # might log or have some other default behavior...
The parentheses are required due to older s...
In C, do braces act as a stack frame?
...tandard specifies that the lifetime of automatic variables declared in the block extends only until the execution of the block ends. So essentially those automatic variables do get "destroyed" at the end of the block.
– caf
May 4 '10 at 1:18
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Do login forms need tokens against CSRF attacks?
...ou don't wanna allow that.
Second: Even very simple failure cases like:
blocking user due to incorrect password n no. of times, can be avoided.
Flase hacking alerts can be prevented. etc etc.
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Center image using text-align center?
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That will not work as the text-align property applies to block containers, not inline elements, and img is an inline element. See the W3C specification.
Use this instead:
img.center {
display: block;
margin: 0 auto;
}
<div style="border: 1px solid black;">
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Detecting programming language from a snippet
... Might also want to think about where you're splitting the words. In PHP, variables start with $, so maybe you shouldn't be splitting on word bounds, because the $ should stick with the variable. Operators like => and := should be stuck together as a single token, but OTH you probably shoul...
How do you determine the ideal buffer size when using FileInputStream?
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Optimum buffer size is related to a number of things: file system block size, CPU cache size and cache latency.
Most file systems are configured to use block sizes of 4096 or 8192. In theory, if you configure your buffer size so you are reading a few bytes more than the disk block, the op...
Is there a sleep function in JavaScript? [duplicate]
... There could be confusion, but it is rare that someone wants to actually block all computation in the entire program. For beginners, the question is usually "how do I pause this one individual function for a bit?" in my experience, so the answer is to await on a promise with setTimeout(): masterin...
How to make ThreadPoolExecutor's submit() method block if it is saturated?
...has reached its maximum size and the queue is full, the submit() method blocks when trying to add new tasks. Do I need to implement a custom RejectedExecutionHandler for that or is there an existing way to do this using a standard Java library?
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How to customise file type to syntax associations in Sublime Text?
...llows you to enable syntax for composite extensions (e.g. sql.mustache, js.php, etc ... )
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