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What is the meaning of prepended double colon “::”?

...wered Nov 24 '10 at 16:27 Wyatt AndersonWyatt Anderson 8,42811 gold badge1919 silver badges2424 bronze badges ...
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Which is better: … or …

...ype attribute at all? If you're using HTML5, no. Otherwise, yes. HTML 4.01 and XHTML 1.0 specifies the type attribute as required while HTML5 has it as optional, defaulting to text/javascript. HTML5 is now widely implemented, so if you use the HTML5 doctype, <script>...</script> is valid...
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prototype based vs. class based inheritance

In JavaScript, every object is at the same time an instance and a class. To do inheritance, you can use any object instance as a prototype. ...
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Scatter plot and Color mapping in Python

I have a range of points x and y stored in numpy arrays. Those represent x(t) and y(t) where t=0...T-1 3 Answers ...
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What is the meaning of the prefix N in T-SQL statements and when should I use it?

... This denotes that the subsequent string is in Unicode (the N actually stands for National language character set). Which means that you are passing an NCHAR, NVARCHAR or NTEXT value, as opposed to CHAR, VARCHAR or TEXT. To quote from Microsoft: Prefix Unicode character string constants ...
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Rounded UIView using CALayers - only some corners - How?

...the answer over at How do I create a round cornered UILabel on the iPhone? and the code from How is a rounded rect view with transparency done on iphone? to make this code. Then I realized I'd answered the wrong question (gave a rounded UILabel instead of UIImage) so I used this code to change it:...
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How to evaluate a math expression given in string form?

...ntext with user input. The executed JavaScript can access all Java classes and thus hijack your application without limit. – Boann Sep 21 '15 at 11:08 4 ...
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Animated GIF in IE stopping

... not work for me. After some more research I came across this workaround, and it actually does work. Here is the gist of it: function showProgress() { var pb = document.getElementById("progressBar"); pb.innerHTML = '<img src="./progress-bar.gif" width="200" height ="40"/>'; pb.s...
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Datatables: Cannot read property 'mData' of undefined

...FYI dataTables requires a well formed table. It must contain <thead> and <tbody> tags, otherwise it throws this error. Also check to make sure all your rows including header row have the same number of columns. The following will throw error (no <thead> and <tbody> tags) &l...
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Are SVG parameters such as 'xmlns' and 'version' needed?

... so you can always drop that. If you embed your SVG inline in a HTML page and serve that page as text/html then xmlns attributes are not required. Embedding SVG inline in HTML documents is a fairly recent innovation that came along as part of HTML5. If however you serve your page as image/svg+xml ...