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Concurrent vs serial queues in GCD

...URL = URL(string: "https://upload.wikimedia.org/wikipedia/commons/0/07/Huge_ball_at_Vilnius_center.jpg")! let _ = try! Data(contentsOf: imgURL) print("\(i) completed downloading") } } } Task will run in different thread(other than main thread) when you use as...
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Scala best way of turning a Collection into a Map-by-key?

...Traversable[V].mapBy( V => K) were better! – oxbow_lakes Jul 14 '10 at 21:17 7 Be aware that t...
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✔ Checkmark selected row in UITableViewCell

... Update Swift 4 func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) { tableView.cellForRow(at: indexPath)?.accessoryType = .checkmark } func tableView(_ tableView: UITableView, didDeselectRowAt indexPath: IndexPat...
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Prevent browser caching of AJAX call result

... multiple requests happening within the same millisecond: $.get('/getdata?_=' + new Date().getTime(), function(data) { console.log(data); }); Edit: This answer is several years old. It still works (hence I haven't deleted it), but there are better/cleaner ways of achieving this now. My prefe...
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Android: failed to convert @drawable/picture into a drawable

...same thing. Also the name of the picture have been "jack", "abc", "question_mark" as you can see there are strictly in the rules of the what characters you can use, and still the error message keeps coming up. Any advice would be great on how to fix the problem, thanks. ...
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Does a view exist in ASP.NET MVC?

...nswered May 8 '13 at 23:35 Simon_WeaverSimon_Weaver 113k7272 gold badges545545 silver badges596596 bronze badges ...
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Insert HTML with React Variable Statements (JSX)

... return ( <div className="content" dangerouslySetInnerHTML={{__html: thisIsMyCopy}}></div> ); } share | improve this answer | follow ...
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Can't import my own modules in Python

...me the same error. I'm assuming it's because its in a sub-directory of the __init__.py? – n0pe Feb 21 '12 at 18:49 Oh ...
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Open a new tab in gnome-terminal using command line [closed]

... #!/bin/sh WID=$(xprop -root | grep "_NET_ACTIVE_WINDOW(WINDOW)"| awk '{print $5}') xdotool windowfocus $WID xdotool key ctrl+shift+t wmctrl -i -a $WID This will auto determine the corresponding terminal and opens the tab accordingly. ...
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How to verify if a file exists in a batch file?

...ing ) If you do not need an "else", you can do something like this: set __myVariable= IF EXIST "C:\folder with space\myfile.txt" set __myVariable=C:\folder with space\myfile.txt IF EXIST "C:\some other folder with space\myfile.txt" set __myVariable=C:\some other folder with space\myfile.txt set _...