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Intellij IDEA Java classes not auto compiling on save

...+Shift+A on Mac) type Registry once the registry windows is open, locate and enable compiler.automake.allow.when.app.running, see here: For versions older than 12, you can use the EclipseMode plugin to make IDEA automatically compile the saved files. For more tips see the "Migrating From Eclips...
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How to upload a file in Django? [closed]

...xample about this. I spent over 2 hours to dig up all the pieces to understand how this works. With that knowledge I implemented a project that makes possible to upload files and show them as list. To download source for the project, visit https://github.com/axelpale/minimal-django-file-upload-exam...
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Floating point vs integer calculations on modern hardware

I am doing some performance critical work in C++, and we are currently using integer calculations for problems that are inherently floating point because "its faster". This causes a whole lot of annoying problems and adds a lot of annoying code. ...
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How do you disable browser Autocomplete on web form field / input tag?

...om the user. We are the third browser to implement this change, after IE and Chrome. According to the Mozilla Developer Network documentation, the Boolean form element attribute autocomplete prevents form data from being cached in older browsers. <input type="text" name="foo" autocomplete...
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Validation failed for one or more entities. See 'EntityValidationErrors' property for more details [

... array in Visual studio during debug. But you can also catch the exception and then write out the errors to some logging store or the console: try { // Your code... // Could also be before try if you know the exception occurs in SaveChanges context.SaveChanges(); } catch (DbEntityValid...
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Difference between signed / unsigned char [duplicate]

So I know that the difference between a signed int and unsigned int is that a bit is used to signify if the number if positive or negative, but how does this apply to a char ? How can a character be positive or negative? ...
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What's the difference between django OneToOneField and ForeignKey?

What's the difference between Django OneToOneField and ForeignKey ? 9 Answers 9 ...
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Fit image into ImageView, keep aspect ratio and then resize ImageView to image dimensions?

How to fit an image of random size to an ImageView ? When: 17 Answers 17 ...
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Maintain model of scope when changing between views in AngularJS

I am learning AngularJS. Let's say I have /view1 using My1Ctrl , and /view2 using My2Ctrl ; that can be navigated to using tabs where each view has its own simple, but different form. ...
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Cron jobs and random times, within given hours

I need the ability to run a PHP script 20 times a day at completely random times. I also want it to run only between 9am - 11pm. ...