Utilizing an unknown provider in AngularJS constants: a guide

Can anyone help me figure out what's going on with this code snippet?

var app = angular.module('myApp', []);
            app.constant('_START_REQUEST_', '_START_REQUEST_');
            app.constant('_END_REQUEST_', '_END_REQUEST_');
            app.config(function($httpProvider, _START_REQUEST_, _END_REQUEST_) {

            });

When I try to run it, I get an error message saying "Unknown provider: START_REQUEST from myApp". Any ideas why?

Thanks in advance!

Answer №1

The issue seems to stem from the way your constants are named.

By changing _START_REQUEST_ and _END_REQUEST_ to START_REQUEST and END_REQUEST, the problem is resolved.

It appears that the underscore at the beginning of the name may be causing complications.

It's unclear whether this is a bug or intentional behavior, but angular does not seem to accept names in that format.

Check out this error-free demo http://jsbin.com/UZaquNu/1/edit

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