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What's the difference between :: (double colon) and -> (arrow) in PHP?

... used to access static members, such usage is discouraged), while :: is usually used to access static members (though in a few special cases, it's used to access instance members). In general, :: is used for scope resolution, and it may have either a class name, parent, self, or (in PHP 5.3) static...
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How can I change the EditText text without triggering the Text Watcher?

...ea to put that in a utility function: void updateText(EditText editText, String text) { boolean focussed = editText.hasFocus(); if (focussed) { editText.clearFocus(); } editText.setText(text); if (focussed) { editText.requestFocus(); } } For Kotlin: Since...
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Why always ./configure; make; make install; as 3 separate steps?

...he commands to compile a program and installation was left to the user. An extra rule allows make install to place the compiled output in a place that might be correct; there are still plenty of good reasons that you might not want to do this, including not being the system administrator, not want t...
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Why are functions in Ocaml/F# not recursive by default?

... function or value of the same name; although I think this is bad practice Extra safety? Makes sure that you are doing what you intended. e.g. If you don't intend it to be recursive but you accidentally used a name inside the function with the same name as the function itself, it will most likely co...
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What's the difference between including files with JSP include directive, JSP include action and usi

...-app. The included content becomes part of the compiled JSP and there's no extra cost at runtime. <jsp:include> (and JSTL's <c:import>, which is similar and even more powerful) are best suited to dynamic content. Use these when you need to include content from another URL, local or remo...
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Cleanest way to get last item from Python iterator

...specific default value could even be correct? If the iterator doesn't actually iterate, then an out-of-band value is more meaningful than some misleading function-specific default. – S.Lott Jan 26 '10 at 11:44 ...
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Private vs Protected - Visibility Good-Practice Concern [closed]

... sure. There are two cases you want to extend a class: You want to add extra functionality to a base class You want to modify existing class that's outside the current package (in some libraries perhaps) There's nothing wrong with private fields in the first case. The fact that people are abus...
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CSS Div stretch 100% page height

...and set the body to height:100% instead of min-height:100%. EDIT 2: Added extra comments to CSS. Added some more instructions above. The CSS: html{ min-height:100%;/* make sure it is at least as tall as the viewport */ position:relative; } body{ height:100%; /* force the BODY element ...
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How to check if one DateTime is greater than the other in C#

...swered Sep 18 '08 at 19:17 Jon GallowayJon Galloway 49k2424 gold badges118118 silver badges191191 bronze badges ...
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Python exit commands - why so many and when should each be used?

...s functionality was included to help people who do not know Python. After all, one of the most likely things a newbie will try to exit Python is typing in quit. Nevertheless, quit should not be used in production code. This is because it only works if the site module is loaded. Instead, this fun...