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How do I use the conditional operator (? :) in Ruby?
..., except for precedence issues. Both are expressions.
Examples:
puts (if 1 then 2 else 3 end) # => 2
puts 1 ? 2 : 3 # => 2
x = if 1 then 2 else 3 end
puts x # => 2
Note that in the first case parenthesis are required (otherwise Ruby is confused be...
Python group by
...ume that I have a set of data pair where index 0 is the value and index 1 is the type:
6 Answers
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Remove all values within one list from another list? [duplicate]
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144
>>> a = range(1, 10)
>>> [x for x in a if x not in [2, 3, 7]]
[1, 4, 5, 6, 8...
How to retrieve absolute path given relative
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21 Answers
21
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How do I read the first line of a file using cat?
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10 Answers
10
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How to convert all tables from MyISAM into InnoDB?
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174
<?php
// connect your database here first
//
// Actual code starts here
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Rolling or sliding window iterator?
...hon iteration can be considered a special case, where the window length is 1. I'm currently using the following code. Does anyone have a more Pythonic, less verbose, or more efficient method for doing this?
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How to serialize an Object into a list of URL query parameters?
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106
var str = "";
for (var key in obj) {
if (str != "") {
str += "&";
}
st...