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How to output numbers with leading zeros in JavaScript [duplicate]
...e same way as a native version, should it ever come along? I can’t find my original comment. Hopefully it’s just a bug in Stack Overflow. If it was deleted, that would be a poor reflection of the state of things around here.
– Adam
Nov 4 '16 at 19:51
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How do I create directory if none exists using File class in Ruby?
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I added a core-only solution to my answer: Be aware, however, that it essentially reimplements FileUtils.mkdir_p (which is the method dedicated to your use case)
– Eureka
Sep 27 '12 at 9:12
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Numpy: Get random set of rows from 2D array
...-sample your data by a certain factor. Say I want to down-sample to 25% of my original data set, which is currently held in the array data_arr:
# generate random boolean mask the length of data
# use p 0.75 for False and 0.25 for True
mask = numpy.random.choice([False, True], len(data_arr), p=[0.75...
Import SQL file into mysql
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From the mysql console:
mysql> use DATABASE_NAME;
mysql> source path/to/file.sql;
make sure there is no slash before path if you are referring to a relative path... it took me a while to realize that! lol
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How to make link look like a button?
... easily wrap a button with a link like so <a href="#"> <button>my button </button> </a>
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How to get child element by class name?
...hat equals "small bigger". If you're looking for a class called big saying myElement.className.indexOf("big") will produce something unequal to negative 1 despite that not actually being a part of the class. If you have 100% control of your class names, such a fix would work, it's just not guarantee...
how to get request path with express req object
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After having a bit of a play myself, you should use:
console.log(req.originalUrl)
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What is the optimal Jewish toenail cutting algorithm?
...l thing.
[update]
Whoops, I did get the original formula wrong... Since my probabilities do not sum to 1. :-)
The correct expression for the expected number of failures is:
0*(14/120) + 1*(106/120)*(14/120) + 2*(106/120)^2*(14/120) + ...
(For example, to get exactly two failures, you need two...
How to update a single library with Composer?
I need to install only 1 package for my SF2 distribution (DoctrineFixtures).
8 Answers
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Converting a JS object to an array using jQuery
My application creates a JavaScript object, like the following:
18 Answers
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