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how do i remove a comma off the end of a string?

...ine use the simpler: $string = rtrim($string, ','); The rtrim function (and corresponding ltrim for left trim) is very useful as you can specify a range of characters to remove, i.e. to remove commas and trailing whitespace you would write: $string = rtrim($string, ", \t\n"); ...
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What is the order of precedence for CSS?

...rying to figure out why one of my css classes seems to override the other (and not the other way around) 8 Answers ...
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Clear the entire history stack and start a new activity on Android

...I lvl <= 10, I haven't yet found a clean solution to this. The "DontHackAndroidLikeThis" solution is indeed pure hackery. You should not do that. :) Edit: As per @Ben Pearson's comment, for API <=10 now one can use IntentCompat class for the same. One can use IntentCompat.FLAG_ACTIVITY_CLEAR_T...
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Is there an easy way to pickle a python function (or otherwise serialize its code)?

... You could serialise the function bytecode and then reconstruct it on the caller. The marshal module can be used to serialise code objects, which can then be reassembled into a function. ie: import marshal def foo(x): return x*x code_string = marshal.dumps(foo.func...
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Difference between filter and filter_by in SQLAlchemy

Could anyone explain the difference between filter and filter_by functions in SQLAlchemy? Which one should I be using? ...
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How do I expand a tuple into variadic template function's arguments?

...ls <N-1> -> calls ... -> calls <0> which is the last one and the compiler will optimize away the various intermediate function calls to only keep the last one which is the equivalent of func(arg1, arg2, arg3, ...) Provided are 2 versions, one for a function called on an object and...
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Is there a way to create your own html tag in HTML5?

...sers, although they won’t be HTML5 (see Are custom elements valid HTML5? and the HTML5 spec). Let's assume you want to use a custom tag element called <stack>. Here's what you should do... STEP 1 Normalize its attributes in your CSS Stylesheet (think css reset) - Example: stack{display...
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What does Maven Update Project do in Eclipse?

...ava version, you will find that Eclipse will ask you to update the project and afterwards the configured Java runtime in the project will have changed to reflect what your Maven pom indicates. That is an important thing to keep in mind: the Maven pom is the lead in this kind of project setup. If yo...
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Importing a Swift protocol in Objective-C class

...however, you can add the protocol to the private @interface in the .m file and it fixes things (at least it has for me on occasion). So above your @implementation have @interface MyController() <AnalyticProtocol>. – Adam Oct 5 '15 at 19:36 ...
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Is “inline” without “static” or “extern” ever useful in C99?

...extern inline do? The idea is that "inline" can be used in a header file, and then "extern inline" in a .c file. "extern inline" is just how you instruct the compiler which object file should contain the (externally visible) generated code. [update, to elaborate] I do not think there is any use ...