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'echo' without newline in a shell script
...t behaviors. Apparently the shell used for your script uses a version that doesn't recognize -n.
The printf command has much more consistent behavior. echo is fine for simple things like echo hello, but I suggest using printf for anything more complicated.
What system are you on, and what shell do...
Rails respond_with: how does it work?
...s%3a%2f%2fstackoverflow.com%2fquestions%2f6118639%2frails-respond-with-how-does-it-work%23new-answer', 'question_page');
}
);
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Ineligible Devices section appeared in Xcode 6.x.x
...ings" tab when you click on a target of your project in Xcode.
Then if does not work, try to restart Xcode. Sometimes we have to restart the Mac and iPhone/iPad. Take a look at the Updates below before restarting Xcode
Update: in Yosemite, Xcode 6.0.1 does not support iOS 8.1, you have to upda...
Why is extending native objects a bad practice?
... practice. But why? Do we get a perfomance hit? Do they fear that somebody does it "the wrong way", and adds enumerable types to Object , practically destroying all loops on any object?
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Reference: Comparing PHP's print and echo
...er " ZEND_ECHO_SPEC_CONST_HANDLER" will be invoked. The handler for print does one thing before it invokes the handler for echo, it makes sure that the return value for print is 1, as follows:
ZVAL_LONG(&EX_T(opline->result.var).tmp_var, 1);
(see here for reference)
The return value is a...
Are arrays in PHP copied as value or as reference to new variables, and when passed to functions?
...les over terminology, the "implementation detail" mentioned here certainly does matter to PHP programmers in the real world.
– Mark Amery
Jan 2 '16 at 0:22
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How to test that no exception is thrown?
... the faulty input and expects an exception you can see whether your method does what it is supposed to do with wrong input.
TL;DR
You were trying to do two things in your test: check for valid and faulty input. By splitting this into two method that each do one thing, you will have much clearer t...
Run MySQLDump without Locking Tables
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Does the --lock-tables=false option work?
According to the man page, if you are dumping InnoDB tables you can use the --single-transaction option:
--lock-tables, -l
Lock all tables before dumping them. The tables are locke...
Difference between .on('click') vs .click()
...delegated event handlers by passing a selector parameter, whereas .click() does not. When .on() is called without a selector parameter, it behaves exactly the same as .click(). If you want event delegation, use .on().
shar...
Memcached vs. Redis? [closed]
...pable of reclaiming it.
Disk I/O dumping: A clear win for redis since it does this by default and has very configurable persistence. Memcached has no mechanisms for dumping to disk without 3rd party tools.
Scaling: Both give you tons of headroom before you need more than a single instance as a cac...