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The written versions of the logical operators

...ror and figured the website was wrong, but it is NetBeans which is wrong because it compiled and ran as expected. 4 Answers...
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How do I catch a numpy warning like it's an exception (not just for testing)?

...ewton's divided difference style one. The problem I have is that I need to catch a division by zero, but Python (or maybe numpy) just makes it a warning instead of a normal exception. ...
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How to port data-only volumes from one host to another?

... Docker documentation on Working with Volumes there is the concept of so-called data-only containers, which provide a volume that can be mounted into multiple other containers, no matter whether the data-only container is actually running or not. ...
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Why does Razor _layout.cshtml have a leading underscore in file name?

...possible to migrate from Web Pages to MVC. Consequently, it makes sense to carry over naming conventions established within Web Pages to MVC Razor files. So there is a technical reason for prefixing the file names with an underscore - it just isn't relevant to MVC. [UPDATE Oct 2018] In the new AS...
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Best way to detect Mac OS X or Windows computers with JavaScript or jQuery

...en the user is on PC. Now I'm doing it by examining the user agent, but it can be too easily spoofed for reliable OS detection. Is there a surefire way to detect whether the OS on which the browser is running is Mac OS X or Windows? If not, what's better than user agent sniffing? ...
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How to overcome TypeError: unhashable type: 'list'

... As indicated by the other answers, the error is to due to k = list[0:j], where your key is converted to a list. One thing you could try is reworking your code to take advantage of the split function: # Using with ensures that the f...
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TypeScript “this” scoping issue when called in jquery callback

...ly there is no obvious best solution and it will really depend on the application. Automatic Class Binding As shown in your question: class DemonstrateScopingProblems { private status = "blah"; public run = () => { alert(this.status); } } Good/bad: This creates an additi...
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CSS filter: make color image with transparency white

... You can use filter: brightness(0) invert(1); html { background: red; } p { float: left; max-width: 50%; text-align: center; } img { display: block; max-width: 100%; } .filter { -webkit-filter: br...
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What is “stdafx.h” used for in Visual Studio?

A file named stdafx.h is automatically generated when I start a project in Visual Studio 2010. I need to make a cross-platform C++ library, so I don't/can't use this header file. ...
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Recommended way to save uploaded files in a servlet application

...ires external parameters. However, given that I need a tmp solution for tomcat (7) and that I have (relative) control over the server machine I want to know : ...