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Why does an overridden function in the derived class hide other overloads of the base class?
...e. The phenomenon is called "name hiding". For some reason, every time someone asks a question about why name hiding happens, people who respond either say that this called "name hiding" and explain how it works (which you probably already know), or explain how to override it (which you never asked ...
Convert .pem to .crt and .key
Can anyone tell me the correct way/command to extract/convert the certificate .crt and private key .key files from a .pem file? I just read they are interchangable, but not how.
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How do I make a textarea an ACE editor?
...There is no support for textarea replacement. Your answer is then the good one. Thx.
– Damien
Dec 26 '11 at 22:08
4
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Difference between a SOAP message and a WSDL?
...rmine how to make calls to the service in the first place. Often this is a one time thing when you first add code to make a call to a particular webservice.
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CSS last-child selector: select last-element of specific class, not last child inside of parent?
...;
margin-bottom: 10px;
}
.comment:last-of-type {
border-bottom: none;
margin-bottom: 0;
}
<div class="commentList">
<article class="comment " id="com21"></article>
<article class="comment " id="com20"></article>
<article class="comment " i...
All falsey values in JavaScript
...null
undefined
NaN
document.all (in HTML browsers only)
This is a weird one. document.all is a falsey object, with typeof as undefined. It was a Microsoft-proprietory function in IE before IE11, and was added to the HTML spec as a "willful violation of the JavaScript specification" so that sites ...
Regular expression that matches valid IPv6 addresses
...@Factor Mystic's answer to work with POSIX regular expressions, so I wrote one that works with POSIX regular expressions and PERL regular expressions.
It should match:
IPv6 addresses
zero compressed IPv6 addresses (section 2.2 of rfc5952)
link-local IPv6 addresses with zone index (section 11 of r...
Why are iframes considered dangerous and a security risk?
Why are iframes considered dangerous and a security risk? Can someone describe an example of a case where it can be used maliciously?
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Declaring variables inside or outside of a loop
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@Arhimed there is one more reason to put it inside the loop (or just '{}' block): the compiler will reuse the memory allocated in the stack frame for the variable in another scope if you declare in that other scope some over variable.
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What characters are valid for JavaScript variable names?
... punctuation (Pc)”
UnicodeEscapeSequence
see 7.8.4.
HexDigit :: one of
0 1 2 3 4 5 6 7 8 9 a b c d e f A B C D E F
which creates a lot of opportunities for naming variables and also in golfing. Let's try some examples.
A valid identifier could start with either a UnicodeLetter, $,...