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What does the Reflect object do in JavaScript?
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UPDATE 2015:
As pointed out by 7th's answer, now that ES6 (ECMAScript 2015) has been finalized, more appropriate documentation is now available:
ES6 spec, Reflection
MDN Reflect (including details and examples to all of its methods)
Original answer (for (historic) ...
How to overload __init__ method based on argument type?
...is using Python's excellent support for named arguments to implement this. Now, if I want to read the data from a file, I say:
obj.read(filename="blob.txt")
And to read it from a string, I say:
obj.read(str="\x34\x55")
This way the user has just a single method to call. Handling it inside, as ...
How to find where a method is defined at runtime?
..., after a series of commits had occurred, a backend process failed to run. Now, we were good little boys and girls and ran rake test after every check-in but, due to some oddities in Rails' library loading, it only occurred when we ran it directly from Mongrel in production mode.
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How to disable HTML button using JavaScript?
...on is marked as a feature with limited support (although that is less true now then when the spec was written).
As of HTML 5, the rules have changed and now you include only the name and not the value. This makes no practical difference because the name and the value are the same.
The DOM property...
pandas dataframe columns scaling with sklearn
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I am not sure if previous versions of pandas prevented this but now the following snippet works perfectly for me and produces exactly what you want without having to use apply
>>> import pandas as pd
>>> from sklearn.preprocessing import MinMaxScaler
>>> scal...
In what areas might the use of F# be more appropriate than C#? [closed]
...rns at all about interoperability. Seamless. The C# programmer need never know.
Code reduction Much of the data fed into the calculation engine was in the form of vectors and matrices. Higher order functions eat these for breakfast with minimal fuss, minimal code. Beautiful.
Lack of bugs Functiona...
Execute code when Django starts ONCE only?
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Update from Pykler's answer below: Django 1.7 now has a hook for this
Don't do it this way.
You don't want "middleware" for a one-time startup thing.
You want to execute code in the top-level urls.py. That module is imported and executed once.
urls.py
from django...
html5 localStorage error with Safari: “QUOTA_EXCEEDED_ERR: DOM Exception 22: An attempt was made to
...n my code. Please actually point out the fix to the problem you appear to know about.
– Novocaine
Oct 20 '15 at 8:51
7
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Reference: What is variable scope, which variables are accessible from where and what are “undefined
...rom. It then explicitly returns a value. The caller has the confidence to know what variables the function will work with and where its return values come from:
$baz = 'baz';
$blarg = foo($baz);
Extending the scope of variables into anonymous functions
$foo = 'bar';
$baz = function () use ($f...
transform object to array with lodash
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@Dominic Now you changed your complete answer and took it from my comment, even without a mention (you edited that out). Well done ???? ????????
– Koushik Chatterjee
Nov 8 '18 at 12:22
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