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Test if a variable is set in bash when using “set -o nounset”
... is not set. We're using the {parameter:-word} expansion, which you can look up in man bash under "Parameter Expansion".
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What is VanillaJS?
I have one simple question, that got stuck in my mind for a few days: What is VanillaJS? Some people refer to it as a framework, you can download a library from the official pages.
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Using GZIP compression with Spring Boot/MVC/JavaConfig with RESTful
...in,application/json,application/xml");
}
}
Also note this will ONLY work if you are running embedded tomcat:
If you plan to deploy to a non embedded tomcat you will have to enable it in server.xml http://tomcat.apache.org/tomcat-9.0-doc/config/http.html#Standard_Implementation
IRL Production N...
How to create multidimensional array
... 'input3';
numeric[1][1] == 'input4';
var obj = {
'row1' : {
'key1' : 'input1',
'key2' : 'input2'
},
'row2' : {
'key3' : 'input3',
'key4' : 'input4'
}
};
obj.row1.key1 == 'input1';
obj.row1.key2 == 'input2';
obj.row2.key1 == 'input3';
obj.row2.key2 ==...
What is the preferred Bash shebang?
...ferent *nixes put bash in different places, and using /usr/bin/env is a workaround to run the first bash found on the PATH. And sh is not bash.
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How do you convert a JavaScript date to UTC?
...:
var isoDate = new Date('yourdatehere').toISOString();
For Timezone work, moment.js and moment.js timezone are really invaluable tools...especially for navigating timezones between client and server javascript.
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How to convert Nonetype to int or string?
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What is the maximum length of a Push Notification alert text?
... iOS 8 and later, the maximum size allowed for a notification payload is 2 kilobytes; Apple Push Notification Service refuses any notification that exceeds this limit. (Prior to iOS 8 and in OS X, the maximum payload size is 256 bytes.)
This is what I could find doing some experiments.
Alerts: P...
Where do I put image files, css, js, etc. in Codeigniter?
...here is it acceptable to put css folders and image file folders? I was thinking inside the view folder? However the controller always reroutes the path to the base url so I have to specify the path in the .html file to where it sits, which is redundant.
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PostgreSQL LIKE query performance variations
I have been seeing quite a large variation in response times regarding LIKE queries to a particular table in my database. Sometimes I will get results within 200-400 ms (very acceptable) but other times it might take as much as 30 seconds to return results.
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