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JavaScript property access: dot notation vs. brackets?
...keywords (like new and class) in internet explorer 8.
I had this code:
//app.users is a hash
app.users.new = {
// some code
}
And this triggers the dreaded "expected indentifier" (at least on IE8 on windows xp, I havn't tried other environments). The simple fix for that is to switch to bracket...
How to disable and re-enable console logging in Python?
... If you wanted to only filter message below a certain log level (say, all INFO messages), you could change the second line to something like logger.setLevel(logging.WARNING)
– Hartley Brody
Jan 5 '18 at 16:48
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What are the main disadvantages of Java Server Faces 2.0?
...ts which seem to make development much faster than with ASP.NET MVC, especially on AJAX-heavy sites. Integration testing looked very nice too.
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Which is more preferable to use: lambda functions or nested functions ('def')?
...nction objects, but list comprehensions and generator expressions are generally more readable than those functions and can cover all use cases, without the need of lambdas.
For the cases you really need a small function object, you should use the operator module functions, like operator.add instea...
System.BadImageFormatException: Could not load file or assembly (from installutil.exe)
I am trying to install a Windows service using InstallUtil.exe and am getting the error message
15 Answers
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Why shouldn't I use mysql_* functions in PHP?
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The MySQL extension:
Is not under active development
Is officially deprecated as of PHP 5.5 (released June 2013).
Has been removed entirely as of PHP 7.0 (released December 2015)
This means that as of 31 Dec 2018 it does not exist in any supported version of PHP. If you are using a ve...
Constructor overload in TypeScript
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TypeScript allows you to declare overloads but you can only have one implementation and that implementation must have a signature that is compatible with all overloads. In your example, this can easily be done with an optional parameter...
JavaScript Regular Expression Email Validation [duplicate]
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If you define your regular expression as a string then all backslashes need to be escaped, so instead of '\w' you should have '\\w'.
Alternatively, define it as a regular expression:
var pattern = /^\w+@[a-zA-Z_]+?\.[a-zA-Z]{2,3}$/;
BTW, please don't validate email address...
StringBuilder vs String concatenation in toString() in Java
...o builder?
At the point where you're concatenating in a loop - that's usually when the compiler can't substitute StringBuilder by itself.
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PyLint, PyChecker or PyFlakes? [closed]
...plus for everybody, but I like it ;-)
Cons of PyLint:
Some rules are really strict. I know that you can change it and that the default is to match PEP8, but is it such a crime to write 'for x in seq'? Apparently yes because you can't write a variable name with less than 3 letters. I will change ...