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Laravel migration: unique key is too long, even if specified

... Specify a smaller length for your e-mail: $table->string('email', 250); Which is the default, actually: $table->string('email'); And you should be good. For Laravel 5.4 you can find a solution in this Laravel 5.4: Specified key was too l...
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How do search engines deal with AngularJS applications?

...re rendered by Google. Original answer If you want to optimize your app for search engines there is unfortunately no way around serving a pre-rendered version to the crawler. You can read more about Google's recommendations for ajax and javascript-heavy sites here. If this is an option I'd recom...
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How is null + true a string?

...es from the C# language spec. From section 7.3.4: An operation of the form x op y, where op is an overloadable binary operator, x is an expression of type X, and y is an expression of type Y, is processed as follows: The set of candidate user-defined operators provided by X and Y for th...
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What is the purpose of using -pedantic in GCC/G++ compiler?

...in some cases, the C and C++ standards specify that certain extensions are forbidden. Conforming compilers such as gcc or g++ must issue a diagnostic when these extensions are encountered. For example, the gcc compiler’s -pedantic option causes gcc to issue warnings in such cases. Using the strict...
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Check whether a path is valid in Python without creating a file at the path's target

...le of Two Questions The question of "How do I test pathname validity and, for valid pathnames, the existence or writability of those paths?" is clearly two separate questions. Both are interesting, and neither have received a genuinely satisfactory answer here... or, well, anywhere that I could gre...
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Backbone.js fetch with parameters

...n/json'; params.data = JSON.stringify(model.toJSON()); } // For older servers, emulate JSON by encoding the request into an HTML-form. if (Backbone.emulateJSON) { params.contentType = 'application/x-www-form-urlencoded'; params.processData = true; params.data ...
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Constructor initialization-list evaluation order

...ample of the syntax I'm using. The thing is, a_ needs to be initialized before b_ in this case. Can you guarantee the order of construction? ...
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How do I export UIImage array as a movie?

...te(kCFAllocatorDefault, frameSize.width, frameSize.height, kCVPixelFormatType_32ARGB, (CFDictionaryRef) options, &pxbuffer); NSParameterAssert(status == kCVReturnSuccess && pxbuffer != NULL); CVPixelBufferLockBaseAddress(pxbuffer, 0); void *pxdata = CVPixelB...
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How do I change the working directory in Python?

...owsError, OSError) on invalid path. If the exception is thrown, do not perform any recursive operations, especially destructive ones. They will operate on the old path and not the new one. Return to your old directory when you're done. This can be done in an exception-safe manner by wrapping your...
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In Python, when should I use a function instead of a method?

... My general rule is this - is the operation performed on the object or by the object? if it is done by the object, it should be a member operation. If it could apply to other things too, or is done by something else to the object then it should be a function (or perhaps...