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How to create a simple map using JavaScript/JQuery [duplicate]
...ence/Global_Objects/Map
var map = new Object(); // or var map = {};
map[myKey1] = myObj1;
map[myKey2] = myObj2;
function get(k) {
return map[k];
}
//map[myKey1] == get(myKey1);
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Best way to randomize an array with .NET
... array of strings with .NET? My array contains about 500 strings and I'd like to create a new Array with the same strings but in a random order.
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Why should hash functions use a prime number modulus?
A long time ago, I bought a data structures book off the bargain table for $1.25. In it, the explanation for a hashing function said that it should ultimately mod by a prime number because of "the nature of math".
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Java - How to create new Entry (key, value)
I'd like to create new item that similarly to Util.Map.Entry that will contain the structure key , value .
11 Answers
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To switch from vertical split to horizontal split fast in Vim
...e two vertically split
windows to horizonally split
Ctrl-w t Ctrl-w K
Horizontally to vertically:
Ctrl-w t Ctrl-w H
Explanations:
Ctrl-w t makes the first (topleft) window current
Ctrl-w K moves the current window to full-width at the very top
Ctrl-w H ...
HashMap and int as key
I am trying to build a HashMap which will have integer as keys and objects as values.
11 Answers
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Ruby, !! operator (a/k/a the double-bang) [duplicate]
... of the boolean value of the operand. So when you chain two exclamation marks together, it converts the value to a boolean.
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For each row in an R dataframe
...frame, and for each row in that dataframe I have to do some complicated lookups and append some data to a file.
9 Answers
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LaTeX source code listing like in professional books
How should a latex source code listing look like to produce an output like in known books, for example one for the Spring Framework? I've tried with the latex listings package but wasn't able to produce something that looked as nice as the one below. So I'm primarely interested in the formatting ins...
Any way to properly pretty-print ordered dictionaries?
I like the pprint module in Python. I use it a lot for testing and debugging. I frequently use the width option to make sure the output fits nicely within my terminal window.
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