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How to hide image broken Icon using only CSS/HTML?
...e object tag since it can be used to display images just like the img tag, and doesn't display a broken link if the image doesn't exist, it works in all browsers and as far back as IE8 all by itself, you can even use default images with this method, I posted an answer with details below.
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Modulo operation with negative numbers
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Should the compiler be smart enough and detect that an unsigned modulo another unsigned is always positive? Currently (well, GCC 5.2) the compiler seems to think that "%" returns an "int" in this case, rather than "unsigned" even when both operands are uint32_...
NullPointerException in Java with no StackTrace
...interException) occurs for the first time, the full stack trace is printed and the JVM remembers the stack trace (or maybe just the location of the code). When that exception occurs often enough, the stack trace is not printed anymore, both to achieve better performance and not to flood the log with...
how to show lines in common (reverse diff)?
...ines in common rather than the lines which are different between them. Command line unix or windows is fine.
7 Answers
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Link to reload current page
...ve been using:
<a href=".">link</a>
Have yet to find a case and/or browser where it does not work as intended.
Period means the current path. You can also use .. to refer to the folder above the current path, for instance, if you have this file structure:
page1.html
folder1
page...
What exactly is Hot Module Replacement in Webpack?
...tal feature.
HMR is a way of exchanging modules in a running application (and adding/removing modules). You basically can update changed modules without a full page reload.
Documentation
Prerequirements:
Using Plugins: https://webpack.js.org/concepts/plugins/
Code Splitting: https://webpack.js....
What is thread safe or non-thread safe in PHP?
...ncy approaches:
Different web servers implement different techniques for handling incoming HTTP requests in parallel. A pretty popular technique is using threads -- that is, the web server will create/dedicate a single thread for each incoming request. The Apache HTTP web server supports multiple m...
When monkey patching an instance method, can you call the overridden method from the new implementat
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EDIT: It has been 9 years since I originally wrote this answer, and it deserves some cosmetic surgery to keep it current.
You can see the last version before the edit here.
You can’t call the overwritten method by name or keyword. That’s one of the many reasons why monkey patching...
How do you move a file?
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Check out section 5.14.2. Moving files and folders (or check out "move" in the Index of the help) of the TortoiseSVN help. You do a move via right-dragging. It also mentions that you need to commit from the parent folder to make it "one" revision. This works for d...
How to write :hover condition for a:before and a:after?
How to write :hover and :visited condition for a:before ?
7 Answers
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