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What is the “right” way to iterate through an array in Ruby?
...terate through all the elements:
array = [1, 2, 3, 4, 5, 6]
array.each { |m>x m>| puts m>x m> }
Prints:
1
2
3
4
5
6
This will iterate through all the elements giving you the value and the indem>x m>:
array = ["A", "B", "C"]
array.each_with_indem>x m> {|val, indem>x m>| puts "#{val} => #{indem>x m>}" }
Prints:
A =&gt...
How do I get the name of the active user via the command line in OS m>X m>?
How do I get the name of the active user via the command line in OS m>X m>?
12 Answers
12
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How to format numbers? [duplicate]
...oLocaleString() with minimumFractionDigits. Browser compatibility for the em>x m>tended options on toLocaleString() was limited when I first wrote this answer, but the current status looks good.
var n = 100000;
var value = n.toLocaleString(
undefined, // leave undefined to use the browser's locale,...
What does Python's eval() do?
... eval function lets a Python program run Python code within itself.
eval em>x m>ample (interactive shell):
>>> m>x m> = 1
>>> eval('m>x m> + 1')
2
>>> eval('m>x m>')
1
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How to format numbers as currency string?
...
1
2
3
Nem>x m>t
1834
...
Why doesn't Dictionary have AddRange?
...ut in a manner that fits with the Framework guidelines.
AddRange doesn't em>x m>ist because a range doesn't have any meaning to an associative container, as the range of data allows for duplicate entries. E.g if you had an IEnumerable<KeyValuePair<K,T>> that collection does not guard against...
How to trigger m>X m>Debug profiler for a command line PHP script?
Build android release apk on Phonegap 3.m>x m> CLI
How can I build an android app locally using the Phonegap 3.m>x m> CLI, ready to release? I check the bin folder generated inside the platforms/android directory of the project, and only has .debug APKs.
...
What is an NP-complete in computer science?
...vable in realistic time.
Edit: As others have noted, there are often approm>x m>imate solutions for NP-Complete problems. In this case, the approm>x m>imate solution usually gives an approm>x m>imation bound using special notation which tells us how close the approm>x m>imation is.
...
Pass Variables by Reference in Javascript
...orld"
You can iterate over the properties of an array with a numeric indem>x m> and modify each cell of the array, if you want.
var arr = [1, 2, 3];
for (var i = 0; i < arr.length; i++) {
arr[i] = arr[i] + 1;
}
It's important to note that "pass-by-reference" is a very specific term. It doe...