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How can I check if a var is a string in JavaScript?
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On a related note: the above check won't work if a string is created with new String('hello') as the type will be Object instead. There are complicated solutions to work around this, but it's better to just avoid creating strings that way, ever.
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PHP and Enumerations
... creating a simple enum class that extends BasicEnum, you now have the ability to use methods thusly for simple input validation:
abstract class DaysOfWeek extends BasicEnum {
const Sunday = 0;
const Monday = 1;
const Tuesday = 2;
const Wednesday = 3;
const Thursday = 4;
con...
Possible to perform cross-database queries with PostgreSQL?
...Postgres installation, there is a function called dblink.
I've never used it, but it is maintained and distributed with the rest of PostgreSQL. If you're using the version of PostgreSQL that came with your Linux distro, you might need to install a package called postgresql-contrib.
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How to get the nvidia driver version from the command line?
For debugging CUDA code and checking compatibilities I need to find out what nvidia driver version for the GPU I have installed. I found How to get the cuda version? but that does not help me here.
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ArrayBuffer to base64 encoded string
...inary );
}
but, non-native implementations are faster e.g. https://gist.github.com/958841
see http://jsperf.com/encoding-xhr-image-data/6
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Port 80 is being used by SYSTEM (PID 4), what is that?
... to all interfaces (not used)
How to read NETSTAT -AN results:
https://sites.google.com/site/xiangyangsite/home/technical-tips/linux-unix/networks-related-commands-on-linux/how-to-read-netstat--an-results
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How to write file if parent folder doesn't exist?
I need to write file to the following path:
10 Answers
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“Content is not allowed in prolog” when parsing perfectly valid XML on GAE
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edited Jun 13 '10 at 3:49
answered Jun 13 '10 at 3:02
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Convert Array to Object
...rable own properties from one or more source objects to a target
object. It will return the target object.
Object.assign({}, ['a','b','c']); // {0:"a", 1:"b", 2:"c"}
The own length property of the array is not copied because it isn't enumerable.
Also, you can use ES6 spread syntax to achieve ...
What is the $$hashKey added to my JSON.stringify result
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Angular adds this to keep track of your changes, so it knows when it needs to update the DOM.
If you use angular.toJson(obj) instead of JSON.stringify(obj) then Angular will strip out these internal-use values for you.
Also, if you change your repeat expression to use the tr...