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PHP Sort Array By SubArray Value

...optionNumber'] is an integer. Use @St. John Johnson's solution if they are strings. In PHP ≥7.0, use the spaceship operator <=> instead of subtraction to prevent overflow/truncation problems. usort($array, function ($a, $b) { return $a['optionNumber'] <=> $b['optionNumber']; })...
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How do you pass multiple enum values in C#?

...vate static void AddEntryToList(DaysOfWeek days, DaysOfWeek match, List<string> dayList, string entryText) { if ((days& match) != 0) { dayList.Add(entryText); } } internal static string[] EnumToArray(DaysOfWeek days) { Li...
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How do you use $sce.trustAsHtml(string) to replicate ng-bind-html-unsafe in Angular 1.2+

ng-bind-html-unsafe was removed in Angular 1.2 10 Answers 10 ...
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What is the proper way to re-throw an exception in C#? [duplicate]

...or, but allows you to put more context, such as an object ID, a connection string, stuff like that. Often my exception reporting tool will have 5 chained exceptions to report, each reporting more detail. share | ...
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What happens if you call erase() on a map element while iterating from begin to end?

...ng erase. At this point it is too late and is already invalidated. map<string, SerialdMsg::SerialFunction_t>::iterator pm_it = port_map.begin(); while(pm_it != port_map.end()) { if (pm_it->second == delete_this_id) { port_map.erase(pm_it++); // Use iterator. ...
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if, elif, else statement issues in Bash

...s a fixed version: #!/bin/bash if [ "$seconds" -eq 0 ]; then timezone_string="Z" elif [ "$seconds" -gt 0 ]; then timezone_string=$(printf "%02d:%02d" $((seconds/3600)) $(((seconds / 60) % 60))) else echo "Unknown parameter" fi ...
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What are the differences between Generics in C# and Java… and Templates in C++? [closed]

... either hard-coding the actual class in, or using interfaces. For example: string addNames<T>( T first, T second ) { return first.Name() + second.Name(); } That code won't compile in C# or Java, because it doesn't know that the type T actually provides a method called Name(). You have to tell...
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How to add to an existing hash in Ruby

...ith Symbol :a finds the right value hash[:a] # => 'a' # Fetch with the String 'a' finds nothing hash['a'] # => nil # Assignment with the key :b adds a new entry hash[:b] = 'Bee' # This is then available immediately hash[:b] # => "Bee" # The hash now contains both keys hash # => { :a ...
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How to manually send HTTP POST requests from Firefox or Chrome browser?

... feature broken for anyone else? When editing the parameters in the "Query String" box, after altering a single character, it refuses to alter the request any further. The only way to do it beyond that is to edit the entire URL/request (which is difficult because it's all smooshed together) ...
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Getting activity from context in android

...ass ProfileView extends LinearLayout { private TaskCompleteListener<String> callback; TextView profileTitleTextView; ImageView profileScreenImageButton; boolean isEmpty; ProfileData data; String name; public ProfileView(Context context, AttributeSet attrs, String n...