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Which Java Collection should I use?

In this question How can I efficiently select a Standard Library container in C++11? is a handy flow chart to use when choosing C++ collections. ...
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if A vs if A is not None:

... method returns None if there were no rows in the result. Suppose you were selecting a value that might return 0 and need to know whether it's actually 0 or whether the query had no results at all. A common idiom is to give a function or method's optional argument the default value of None, and the...
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How to set top-left alignment for UILabel for iOS application?

... I have no Constraint options when I select a label. – velkoon Oct 6 '18 at 0:13 ...
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Anaconda vs. EPD Enthought vs. manual installation of Python [closed]

...side I noticed right now is that the standard installation requires you to select which packages you want. It's both a good and a bad point, because I can't be sure that my clients will have the exact same configuration as I do when I install. (The Enthought tool suite can be installed in Python(x,y...
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Make a div into a link

... The code doesn't work entirely in IE7/8, other elements that are selectable take precedence over the <a><span></span></a> element. I.e. images and texts inside the container won't link even if the z-index is set. – Spoike Mar 1...
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Margin while printing html page

... wrong even if you use cm or mm. To override this behaviour, the user must select 'Print preview' and then set the print size to 100% (default is Shrink To Fit). A better option for full control on printed margins is to use the @page directive to set the paper margin, which will affect the margin ...
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Secret copy to clipboard JavaScript function in Chrome and Firefox?

... function(obj, panelName) // no web page interaction { Firebug.chrome.select(obj, panelName); }; this.keys = function(o) { return FBL.keys(o); // the object is from the page, unwrapped }; this.values = function(o) { return FBL.values(o); // the object is from the page, unwrapped }; ...
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Can I nest a element inside an using HTML5?

...e toolbar state) <object> (if the usemap attribute is present) <select> <textarea> <video> (if the controls attribute is present) If you are trying to have a button that links to somewhere, wrap that button inside a <form> tag as such: <form style="display: in...
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python pip: force install ignoring dependencies

...tools, pip. Setuptools (and pip) has "extras", but they must be explicitly selected and installed by the user. – shadowtalker Oct 18 '18 at 19:51 ...
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How can I get the latest JRE / JDK as a zip file rather than EXE or MSI installer? [closed]

...mp; drop jdk1.6.0_31.msi or jre1.6.0_31.msi on the icon of UniExtract.exe. Select "Extract Method: MSI Administrative Installer". Wait for the process to finish. Enter the new created folder. If you've drag-and-dropped jre1.6.0_31.msi you should have a jre1.6.0_31 folder Follow all levels inside an...