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What is the meaning of polyfills in HTML5?
...It's adding this functionality via javascript which the browser does not already support.
– Calvin Froedge
Aug 17 '11 at 2:35
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How to commit no change and new message?
... contrast to --allow-empty-message for empty commit messages. You can also read more by typing git help commit or visiting the online documentation.
While the tree object (which has a hash of its own) will be identical, the commit will actually have a different hash, because it will presumably have ...
How find all unused classes in Intellij Idea?
...any different, from the point of analysis safety, than using reflection to read/set private fields on a class. So if IntelliJ will do this for fields, that is not an acceptable answer for why it won't do it for classes as well. In either case, the analysis result isn't 100% guaranteed to be safe.
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Call by name vs call by value in Scala, clarification needed
...sera, principle in scala programming. Lecture 1.2. The call by name should read def test (x:Int, y: => Int) = x * x note that the parameter y is never used.
– dr jerry
Mar 29 '16 at 9:48
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If using maven, usually you put log4j.properties under java or resources?
...er coming back and answering the question I missed that the question was already answered. resource was only a typo.
– splash
Feb 27 '11 at 9:59
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calculating the difference in months between two dates
...true .Month and .Years - I've just posted an answer for that which you can read. Although, as far as approximations so, this is a good approximation (props to Adam Robinson) however you should keep in mind that if you use any of these approximations you are just unintentionally lying to your users.
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Python name mangling
...anguages, and each choice has advantages and disadvantages.
Since there already is this culture, you are well advised to follow it. Otherwise, you will get annoyed by Python programmers telling you to remove the __ from your code when you ask a question in Stack Overflow :)
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How to use php serialize() and unserialize()
... You take some information and do some work with it in your php script ready to store/send it somewhere. You have the option to create a table that exactly matches the expected data, but this is tedious you are essentially doubling your work load because you have to write code that matches too, ...
How do I add a simple onClick event handler to a canvas element?
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Probably very late to the answer but I just read this while preparing for my 70-480 exam, and found this to work -
var elem = document.getElementById('myCanvas');
elem.onclick = function() { alert("hello world"); }
Notice the event as onclick instead of onClick.
J...
What data type to use for hashed password field and what length?
...ing a hash function is not strong enough for storing passwords. You should read the answer from Gilles on this thread for a more detailed explanation.
For passwords, use a key-strengthening hash algorithm like Bcrypt or Argon2i. For example, in PHP, use the password_hash() function, which uses Bcry...