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Difference between `constexpr` and `const`
...that require compile-time evaluation, for example, template parameters and array-size specifiers:
template<int N>
class fixed_size_list
{ /*...*/ };
fixed_size_list<X> mylist; // X must be an integer constant expression
int numbers[X]; // X must be an integer constant expre...
Limiting number of displayed results when using ngRepeat
...pect this would be less efficient than using limitToFilter if it's a large array, because every item presumably has to be evaluated
– rom99
Aug 5 '15 at 16:44
3
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getting the last item in a javascript object
...na and so on. If you need to rely on ordering, your best bet is to go with arrays. The power of key-value data structures lies in accessing values by their keys, not in being able to get the nth item of the object.
share
...
Sequelize, convert entity to plain object
...
"raw: true" will somehow flattens array injected by associated models. The only work around I found so far is to configs = JSON.parse(JSON.stringify(configs));
– Soichi Hayashi
Oct 14 '15 at 1:51
...
Setting environment variables via launchd.conf no longer works in OS X Yosemite/El Capitan/macOS Sie
...;my.startup</string>
<key>ProgramArguments</key>
<array>
<string>sh</string>
<string>-c</string>
<string>
launchctl setenv PRODUCTS_PATH /Users/mortimer/Projects/my_products
launchctl setenv ANDROID_NDK_HOME /Applications/...
How to get Spinner value?
...ing that is displayed to the user), but not its value if you mapped an int array onto the spinner for example.
– A. Steenbergen
Feb 5 '15 at 13:58
...
Rails filtering array of objects by attribute value
So I perform a query to the db and I have a complete array of objects:
5 Answers
5
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Java HashMap performance optimization / alternative
...f 1,300 objects per hash bucket = very very bad. However if I turn the two arrays into a number in base 52 I am guaranteed to get a unique hash code for every object:
public int hashCode() {
// assume that both a and b are sorted
return a[0] + powerOf52(a[1], 1) + powerOf52(b[...
Count how many files in directory PHP
...
Try this.
// Directory
$directory = "/dir";
// Returns array of files
$files = scandir($directory);
// Count number of files and store them to variable..
$num_files = count($files)-2;
Not counting the '.' and '..'.
...
Switch statement for greater-than/less-than
...nge2 31.9 8.3 2.0 4.5 9.5 6.9
switch-indirect-array 35.2 9.6 4.2 5.5 10.7 8.6
array-linear-switch 3.6 4.1 4.5 10.0 4.7 2.7
array-binary-switch 7.8 6.7 9.5 16.0 15.0 4.9
Test where performed on Windows 7 3...