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Is “IF” expensive?
...aken and (2) the target of the branch. Figuring this out is called branch prediction, and it's a challenging problem. If the processor guesses correctly, the program continues at full speed. If instead the processor guesses incorrectly, it just spent some time computing the wrong thing. It now h...
best practice to generate random token for forgot password
...just microtime() with some encoding. There are simple ways to get accurate predictions of the microtime() on your server. An attacker can issue a password reset request and then try through a couple of likely tokens. This is also possible if more_entropy is used, as the additional entropy is similar...
Why does Chrome incorrectly determine page is in a different language and offer to translate?
...ailing. Building off of NinjaCat's answer, we assume that Google reads and predicts the language of your website using an N-gram algorithm -- so, we can't say exactly why Google wants to translate your page; we can only assume that:
There are words on your page that belong to a different language....
Are there conventions on how to name resources?
...be suitable after 2 years. And it's completely fine. You should not try to predict future. Just choose a convention and follow it. You will find if it is suitable for you and your project. If its not, think about why it is not suitable and start using something else.
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Int or Number DataType for DataAnnotation validation attribute
On my MVC3 project, I store score prediction for football/soccer/hockey/... sport game. So one of properties of my prediction class looks like this:
...
Insert picture/table in R Markdown [closed]
...know how to lock the image location in place? Right now it's very hard to predict where it will appear when I compile it.
– wolfsatthedoor
Jun 1 '19 at 6:28
1
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How does the new automatic reference counting mechanism work?
... It will tend to have higher performance, lower peak memory use, and more predictable performance than a GC system.
On the other hand some types of data structure are not possible with ARC (or MRC), while GC can handle them.
As an example, if you have a class named node, and node has an NSArray o...
How to access the first property of a Javascript object?
.... I'm not sure you're guaranteed that the properties will be iterated in a predictable/useful order though. I.e., you may intend foo1 but get foo3. If the properties are numbered as in the example, you could do a string compare to ascertain the identifier ending in '1'. Then again, if ordinality i...
Check whether user has a Chrome extension installed
...ources inherently expose the extension to fingerprinting, since the URL is predictable by knowing the ID. Firefox decided to close that hole by assigning an instance-specific random URL to web accessible resources:
The files will then be available using a URL like:
moz-extension://<random-UUID&g...
Is < faster than
... should be based on the recommendation of section Section 3.4.1, “Branch Prediction Optimization,” to improve the predictability of branches. When branches are predicted successfully, the latency of jcc is effectively zero.
So, nothing in the Intel docs ever treats one Jcc instruction any dif...