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How to dynamically create CSS class in JavaScript and apply?

...ml5 app, which will have writing on a canvas, and I want to let my user to select from a wide range of fonts to use. Rather than having a loooong css with all the font, I'm planning on creating a backend where I'll just upload the font data and whenever the program is loaded, a little call to a web...
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Can someone explain how to implement the jQuery File Upload plugin?

...view"/><span style="display:none">Drag and drop files or click to select</span>'); var widthImg=$('.dropper-dropzone').attr('width'); $('#imgPreview').attr({width:widthImg}); $('#imgPreview').attr({src:res.data}); }) } function image_preview(file){ var def = new...
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Why should you use an ORM? [closed]

...f query I am thinking of is a polymorphic query. A simple ORM query might select all shapes in your database. You get a collection of shapes back. But each instance is a square, circle or rectangle according to its discriminator. Another type of query would be one that eagerly fetches an object ...
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Creating a config file in PHP

...s is best considered where you have a huge amount of configuration but are selective in what is needed for the current task - I was surprised to find that at around 150 data items, it was quicker to retrieve the data from a local MySQL instance than to unserialize a datafile. OTOH its not a good pl...
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How can I extract a good quality JPEG image from a video file with ffmpeg?

...be console output can tell you if your input is MJPEG: $ ffprobe -v error -select_streams v:0 -show_entries stream=codec_name -of default=nw=1 input.avi codec_name=mjpeg Then you can extract the frames using the mjpeg2jpeg bitstream filter: $ ffmpeg -i input.avi -codec:v copy -bsf:v mjpeg2jpeg outp...
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What is the difference between varchar and nvarchar?

... NLS_CHARACTERSET option is set. You may be able to find it with the query SELECT value$ FROM sys.props$ WHERE name = 'NLS_CHARACTERSET'. If your NLS_CHARACTERSET is a Unicode encoding like UTF8, great. Using VARCHAR and NVARCHAR are pretty much identical. Stop reading now, just go for it. Otherwis...
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SQL Client for Mac OS X that works with MS SQL Server [closed]

... I love DbVisualizer too, I just miss that the Free edition doesn't allow "selection executes" and the Personal edition is too expensive for me (because of exchange rates). – Daniel Serodio Nov 9 '11 at 13:56 ...
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Facebook Post Link Image

...og:title - The title of the entity. og:type - The type of entity. You must select a type from the list of Open Graph types. og:image - The URL to an image that represents the entity. Images must be at least 50 pixels by 50 pixels. Square images work best, but you are allowed to use images up to thre...
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How to differ sessions in browser-tabs?

...of accounts stored in cookies, google mail is just storing all cookies and select one according to the url. – Mhmd Oct 25 '14 at 0:57 5 ...
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Protecting Java Source Code From Being Accessed [closed]

...file looked the same to them: some programming statements and line breaks. Selecting the text carefully would show the whitespace. Each empty line would contain a certain number of spaces that's obviously not random or accidental. (eg 17) In practice, this method did the work for me because they cou...