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iPhone: How to get current milliseconds?
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struct timeval time;
gettimeofday(&time, NULL);
long millis = (time.tv_sec * 1000) + (time.tv_usec / 1000);
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.gitignore all the .DS_Store files in every folder and subfolder
I've added .DS_Store to the .gitignore file, but it seems that it is only ignoring .DS_Store in the root directory, not in every folder and subfolder.
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Cartesian product of multiple arrays in JavaScript
...tps://developer.mozilla.org/en/docs/Web/JavaScript/Reference/Functions/rest_parameters
https://developer.mozilla.org/en/docs/Web/JavaScript/Reference/Operators/Spread_operator
The new methods from the Update 2020 example was added in ES2019:
http://www.ecma-international.org/ecma-262/10.0/
https:/...
Display block without 100% width
...er. inline-block et al was breaking my layout.
– i336_
Sep 28 '19 at 2:32
1
@i336_ As of today it...
Python function global variables?
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In the code that I gave, is func_B doing things (1) to the global copy of x (as gotten from func_A), (2) to a local variable x with the same value of the result of func_A, or (3) to a local variable x with no value and (in the eyes of the compiler) no relat...
Installing PG gem on OS X - failure to build native extension
... postgresql 3. gem install pg 4. bundle install
– kai_onthereal
Jun 25 '19 at 5:42
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Passing a dictionary to a function as keyword parameters
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This is great, just used it with argparse/__dict__ to make it really easy to do command line argument parsing directly into options for a class object.
– Horus
Jun 14 '12 at 3:47
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LINQ: Distinct values
...ityComparer<T>
{
private readonly Func<T, T, bool> _expression;
public LambdaComparer(Func<T, T, bool> lambda)
{
_expression = lambda;
}
public bool Equals(T x, T y)
{
return _expression(x, y);
}
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Do sealed classes really offer performance Benefits?
... Release build configuration) emits identical MSIL, which is as follows:
L_0000: newobj instance void <NormalClass or SealedClass>::.ctor()
L_0005: stloc.0
L_0006: ldloc.0
L_0007: ldstr "a string"
L_000c: callvirt instance void <NormalClass or SealedClass>::WriteIt(string)
L_0011: ret...
Add a property to a JavaScript object using a variable as the name?
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With lodash, you can create new object like this _.set:
obj = _.set({}, key, val);
Or you can set to existing object like this:
var existingObj = { a: 1 };
_.set(existingObj, 'a', 5); // existingObj will be: { a: 5 }
You should take care if you want to use dot (".") i...