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Syntax for a single-line Bash infinite while loop
... to while, until would execute the commands inside the loop as long as the test condition has an exit status which is not zero.
Using a while loop:
while read i; do foo; sleep 2; done < /dev/urandom
Using a for loop:
for ((;;)); do foo; sleep 2; done
Another way using until:
until [...
Get a UTC timestamp [duplicate]
...
@LukasLiesis if you tested this by console.log(new Date(timestamp)) then the timezone is a property of the Date object, not of the timestamp - the input must be in number of milliseconds since 1 January 1970 UTC in order for the Date object to d...
Highlight bash/shell code in markdown
...h I could not find any official git hub doc about using highlight.js, I've tested lots of languages and seemed to be working
To see list of languages I used https://github.com/highlightjs/highlight.js/blob/master/SUPPORTED_LANGUAGES.md
Some shell samples:
Shell: console, shell
Bash: bash,...
Disabling and enabling a html input button
... the code based on jquery 1.6.1 changes. As a suggestion, always use the latest jquery files and the prop() method.
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T-SQL Cast versus Convert
...able to measure a performance difference between the two functions.
I was testing performance of variations of the solution to this question and found that the standard deviation and maximum runtimes were larger when using CAST.
*Times in milliseconds, rounded to nearest 1/300th of a second as pe...
Mysql command not found in OS X 10.7
... I haven't used the new Mac version, my mac died :( so I cannot test it anymore
– zazu
Apr 21 '17 at 16:33
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Reactjs: Unexpected token '
...olution : You have to configure your webpack configuration as follows
{
test : /\.jsx?$/,
exclude: /(node_modules|bower_components)/,
loader : 'babel',
query : {
presets:[ 'react', 'es2015' ]
}
}
here .jsx checks both .js and .jsx formats.
you can simply install the babel depend...
How should a model be structured in MVC? [closed]
... from. It might be a database, but it also might be just a mock object for testing purposes. Even the data mappers, that are actually used for it, are hidden away in the private methods of this service.
private function changeIdentityStatus(Entity\Identity $identity, int $status)
{
$identity-&g...
Eclipse: have the same file open in two editors?
...ristopherStock on Eclipse-Juno, you can open Window -> New Editor. I've tested on my eclipse juno! :D
– Tuan
Sep 9 '13 at 15:00
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Count number of records returned by group by
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This works in Oracle at least - I don't currently have other databases to test it out on, and I'm not so familiar with T-Sql and MySQL syntax.
Also, I'm not entirely sure whether it's more efficient in the parser to do it this way, or whether everyone else's solution of nesting the select statemen...