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How to detect which one of the defined font was used in a web page?

...ty reliable way. Basically, an element is set to use a specific font and a string is set to that element. If the font set for the element does not exist, it takes the font of the parent element. So, what they do is measure the width of the rendered string. If it matches what they expected for the...
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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) ...