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Group query results by month and year in postgresql

...s above recommended and I was getting a column 'year_month' does not exist error. What worked for me was: SELECT date_trunc('month', created_at), 'MM/YYYY' AS month FROM "orders" GROUP BY date_trunc('month', created_at) ...
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mongodb group values by multiple fields

...)); log({ topaddr }); client.close(); } catch(e) { console.error(e) } finally { process.exit() } })() books.json { "addr": "address1", "book": "book1" } { "addr": "address2", "book": "book1" } { "addr": "address1", "book": "book5" } { "addr": "address3", "book": "boo...
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Location Services not working in iOS 8

... I 'LOVE' that you get no error, no warning, no log message, NOTHING if you leave out the plist entry. Basically Apple has created an API call that does NOTHING if you don't have the appropriate plist entry. Thanks to @OrtwinGentz for figuring this ...
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Prevent errors from breaking / crashing gulp watch

... Your swallowError function should look like this: function swallowError (error) { // If you want details of the error in the console console.log(error.toString()) this.emit('end') } I think you have to bind this function on th...
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Prevent browser from loading a drag-and-dropped file

... You can add a event listener to the window that calls preventDefault() on all dragover and drop events. Example: window.addEventListener("dragover",function(e){ e = e || event; e.preventDefault(); },false); window.addEventListener("drop",function(e){ e = e || event; ...
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How to kill a process running on particular port in Linux?

...TIME_WAIT state after the parent process is killed. The OS will then eventually completely close the port after about 60 seconds. It means that you can't reuse the port for at least 60 seconds (unless you give the reuse option to the socket). – Mark Lakata Sep ...
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JSLint is suddenly reporting: Use the function form of “use strict”

...ok on Grunt: If we try it now, we will scan our Gruntfile… and get some errors: $ grunt jshint Running "jshint:all" (jshint) task Linting Gruntfile.js...ERROR [L1:C1] W097: Use the function form of "use strict". 'use strict'; Linting Gruntfile.js...ERROR [L3:C1] W117: 'module' is not defined. mo...
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Using Regular Expressions to Extract a Value in Java

... answered Oct 25 '08 at 21:47 Allain LalondeAllain Lalonde 83.5k6666 gold badges172172 silver badges234234 bronze badges ...
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How do I speed up the gwt compiler?

... I used that option, and in our project sometimes it failed with a strange error. So be aware, that sometimes the compilation might not work because of this. – Vic Aug 12 '12 at 10:38 ...
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OwinStartup not firing

...o classic the debugger will break in startup. I ran after that and got an error saying the application had to run in Integrated so I had to change it back but was at least able to see that it was breaking there. – Matt Bodily Apr 20 '17 at 15:10 ...