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Why exactly is eval evil?
...estion is not specific to LISP. Here is an answer on the same question for PHP, and it applies to LISP, Ruby, and other other language that has an eval:
The main problems with eval() are:
Potential unsafe input. Passing an untrusted parameter is a way to
fail. It is often not a trivial...
What is the meaning of erb?
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lame, they should remove the html. u don't see html.php
– luckyguy73
Oct 22 '16 at 23:26
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Does Python have “private” variables in classes?
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I wonder if PHP has something similar with its goofy private variables - since private variables don't really make sense in interpreted language - I mean what optimization can it do knowing x variable is private, if it is not compiled?
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How to get the contents of a webpage in a shell variable?
... This is a really neat trick. I invoke a shell script via a php script on a proxy server. When asked, the proxy server turns on expensive servers which shut themselves off after 2 hours. I need the output from wget for standard output to feed back to the Jenkins console record.
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How to check whether an object has certain method/property?
...much any modern dynamic scripting language (Python, Javascript, VB script, PHP, Lua... I could go on and on). It's not a bug, it's a feature.
– Tim Keating
Dec 3 '11 at 14:36
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MySql Table Insert if not exist otherwise update
...safe. (Bug #11765650, Bug #58637) Bug 58637 description bugs.mysql.com/bug.php?id=58637
– broadband
Sep 2 '14 at 13:28
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Which is the fastest algorithm to find prime numbers?
...tp://primes.utm.edu/prove/prove2_3.html and http://forums.nvidia.com/index.php?showtopic=70483
If you just need a way to generate very big prime numbers and don't care to generate all prime numbers < an integer n, you can use Lucas-Lehmer test to verify Mersenne prime numbers. A Mersenne prime n...
What's the best manner of implementing a social activity stream? [closed]
...ok at getstream.io There are clients available for Node, Python, Rails and PHP.
In addition have a look at this high scalability post were we explain some of the design decisions involved:
http://highscalability.com/blog/2013/10/28/design-decisions-for-scaling-your-high-traffic-feeds.html
This tut...
How do I make JavaScript beep?
...r wav files into Data URI format:
https://dopiaza.org/tools/datauri/index.php
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Are braces necessary in one-line statements in JavaScript?
...e follows in all C syntax style languages with bracing. C, C++, Java, even PHP all support one line statement without braces. You have to realize that you are only saving two characters and with some people's bracing styles you aren't even saving a line. I prefer a full brace style (like follows) so...