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What does |= (ior) do in Python?
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Here we apply merge (|) and update (|=) to dicts:
>>> d1 = {"a": 0, "b": 1, "c": 2}
>>> d2 = {"c": 20, "d": 30}
>>> # Merge, |
>>> d1 | d2
{"a": 0, "b": 1, "c": 20, "d": 30}
>>> d1
{"a": 0, "b": 1, "c": 2}
>>> # Update, |=
>>> d1 |=...
Returning an array using C
...t (shouldn't) do this:
char *returnArray(char array []){
char returned [10];
//methods to pull values from array, interpret them, and then create new array
return &(returned[0]); //is this correct?
}
returned is created with automatic storage duration and references to it will become inva...
Where Is Machine.Config?
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590
32-bit
%windir%\Microsoft.NET\Framework\[version]\config\machine.config
64-bit
%windir%\Micr...
How to test multiple variables against a value?
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+500
You misunderstand how boolean expressions work; they don't work like an English sentence and guess that you are talking about the sam...
How do I make a transparent canvas in html5?
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edited Apr 16 '14 at 1:20
Lee Taylor
5,93777 gold badges2626 silver badges4343 bronze badges
answered ...
What's the fastest way to convert String to Number in JavaScript?
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There are 4 ways to do it as far as I know.
Number(x);
parseInt(x, 10);
parseFloat(x);
+x;
By this quick test I made, it actually depends on browsers.
http://jsperf.com/best-of-string-to-number-conversion/2
Implicit marked the fastest on 3 browsers, but it makes the code hard to read… S...
How can I get a count of the total number of digits in a number?
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Without converting to a string you could try:
Math.Ceiling(Math.Log10(n));
Correction following ysap's comment:
Math.Floor(Math.Log10(n) + 1);
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How do I reverse a C++ vector?
...{
std::vector<int> a;
std::reverse(a.begin(), a.end());
return 0;
}
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How to install a previous exact version of a NPM package?
I used nvm to download node v0.4.10 and installed npm to work with that version of node.
10 Answers
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Bash: If/Else statement in one line
...me_process ) is running on a server. If it is, then echo 1, otherwise echo 0.
5 Answers
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