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When to use setAttribute vs .attribute= in JavaScript?

...andard attributes. Example: node.className = 'test'; // works node.frameborder = '0'; // doesn't work - non standard attribute node.setAttribute('frameborder', '0'); // works share | improve this...
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How do you set, clear, and toggle a single bit?

...e always found using bitfields is a bad idea. You have no control over the order in which bits are allocated (from the top or the bottom), which makes it impossible to serialize the value in a stable/portable way except bit-at-a-time. It's also impossible to mix DIY bit arithmetic with bitfields, fo...
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扩展App Inventor:具有多点触控和手势检测功能 · App Inventor 2 中文网

...his event, so it detects the rotation even when we do not intend it to. In order to solve this problem, we add a buffer when we detect $MotionEvent.ACTION_MOVE$, so that we only fire “rotation” when the positions of two fingers change above some threshold. Figure 6. Block designed for Rotatio...
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扩展App Inventor:具有多点触控和手势检测功能 · App Inventor 2 中文网

...his event, so it detects the rotation even when we do not intend it to. In order to solve this problem, we add a buffer when we detect $MotionEvent.ACTION_MOVE$, so that we only fire “rotation” when the positions of two fingers change above some threshold. Figure 6. Block designed for Rotatio...
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扩展App Inventor:具有多点触控和手势检测功能 · App Inventor 2 中文网

...his event, so it detects the rotation even when we do not intend it to. In order to solve this problem, we add a buffer when we detect $MotionEvent.ACTION_MOVE$, so that we only fire “rotation” when the positions of two fingers change above some threshold. Figure 6. Block designed for Rotatio...
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扩展App Inventor:具有多点触控和手势检测功能 · App Inventor 2 中文网

...his event, so it detects the rotation even when we do not intend it to. In order to solve this problem, we add a buffer when we detect $MotionEvent.ACTION_MOVE$, so that we only fire “rotation” when the positions of two fingers change above some threshold. Figure 6. Block designed for Rotatio...
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Converting BigDecimal to Integer

...very specific need for the wrap around that happens when you drop the high-order bits. Given those params, intValueExact() throws an exception when we don't want it to if our fractional part is non-zero. On the other hand, intValue() doesn't throw an exception when it should if our BigDecimal is ...
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What is the performance cost of having a virtual method in a C++ class?

... I ran some timings on a 3ghz in-order PowerPC processor. On that architecture, a virtual function call costs 7 nanoseconds longer than a direct (non-virtual) function call. So, not really worth worrying about the cost unless the function is something lik...
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How is Perl's @INC constructed? (aka What are all the ways of affecting where Perl modules are searc

...with a Perl array. Note: The directories are unshifted onto @INC in the order listed in this answer, e.g. default @INC is last in the list, preceded by PERL5LIB, preceded by -I, preceded by use lib and direct @INC manipulation, the latter two mixed in whichever order they are in Perl code. Refer...
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Is there a constraint that restricts my generic method to numeric types?

...t for every type you like and use that accordingly (at compile time!). In order to do this: Create a new Text Template file called GenericNumberMethodTemplate.tt. Remove the auto-generated code (you'll keep most of it, but some isn't needed). Add the following snippet: <#@ template languag...