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How do I create a custom Error in JavaScript?
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Update your code to assign your prototype to the Error.prototype and the instanceof and your asserts work.
function NotImplementedError(message) {
this.name = "NotImplementedError";
this.message = (message || "");
}
NotImplementedError.prototype = Error.prototype;
However, I wou...
How can I do test setup using the testing package in Go
...outlined here in the Main section:
TestMain runs in the main goroutine and can do whatever setup and
teardown is necessary around a call to m.Run. It should then call
os.Exit with the result of m.Run
It took me some time to figure out that this means that if a test contains a function func...
Arguments or parameters? [duplicate]
I often find myself confused with how the terms 'arguments' and 'parameters' are used. They seem to be used interchangeably in the programming world.
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Operator Overloading with C# Extension Methods
...t currently possible, because extension methods must be in static classes, and static classes can't have operator overloads. But the feature is being discussed for some future release of C#. Mads talked a bit more about implementing it in this video from 2017.
On why it isn't currently implemented, ...
Convert php array to Javascript
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agreed: if you're using and old PHP, you'll need to write your own. However, you should also consider upgrading your PHP if at all possible!
– Spudley
Apr 11 '11 at 9:25
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Are HTTPS URLs encrypted?
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Yes, the SSL connection is between the TCP layer and the HTTP layer. The client and server first establish a secure encrypted TCP connection (via the SSL/TLS protocol) and then the client will send the HTTP request (GET, POST, DELETE...) over that encrypted TCP connection....
Storing Image Data for offline web application (client-side storage database)
...d: Chrome v24, FireFox 18, IE 10
Should also work with Chrome & FF for Android
Fetch from web server
using XHR2 (supported on almost all browsers) for blob download from web server
I went with XHR2-Lib by Phil Parsons, which is very much like JQUERY .ajax()
https://github.com/p-m-p/xhr2-li...
Currency formatting in Python
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See the locale module.
This does currency (and date) formatting.
>>> import locale
>>> locale.setlocale( locale.LC_ALL, '' )
'English_United States.1252'
>>> locale.currency( 188518982.18 )
'$188518982.18'
>>> locale.currency( 1885...
React.js: onChange event for contentEditable
...s answer which fixes a bug in my implementation.
Use the onInput event, and optionally onBlur as a fallback. You might want to save the previous contents to prevent sending extra events.
I'd personally have this as my render function.
var handleChange = function(event){
this.setState({html...
How do I combine a background-image and CSS3 gradient on the same element?
How do I use CSS3 gradients for my background-color and then apply a background-image to apply some sort of light transparent texture?
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