Value and Constant are simple objects which are used to share data globally with in a module.
Value - A value can be a number, string, date-time, array or object. You can also register a function as a value.
Values are typically used as configuration which is injected into factories, services or controllers.
//define module
var app = angular.module('app', []);
//define value
app.value("numberValue", 100);
app.value("stringValue", "dotnet-tricks.com");
app.value("objectValue", { name: "dotnet-tricks.com", totalUsers: 120000 });
Constant - A constant is like as value. The difference between a value and a constant service is that constant
service can be injected into a module configuration function i.e. config() but value service cannot be.
//define module
var app = angular.module('app', []);
//define constant
app.constant("mynumberValue", 200);
app.constant("mystringValue", "webgeekschool.com");
//module configuration function
app.config(function (mynumberValue) { //here value objects can't be injected
console.log("Before:" + mynumberValue);
mynumberValue = "New Angular Constant Service";
console.log("After:" + mynumberValue);
});
