Sep 18, 2015 · You can create a way to define static constants on a class using an odd feature of ES6 classes. Since statics are inherited by their subclasses, you can do the following:

Jun 1, 2012 · The only possible way to do something that behaves like you want, but is not using constants, is to define a non-writable property: var obj = {}; Object.defineProperty( obj, "MY_FAKE_CONSTANT", { value: "MY_FAKE_CONSTANT_VALUE", writable: false, enumerable: true, configurable: true });

Jan 25, 2011 · I'm using class members to hold constants. E.g.: function Foo() { } Foo.CONSTANT1 = 1; Foo.CONSTANT2 = 2; This works fine, except that it seems a bit unorganized, with all the code that is specific to Foo laying around in global scope.

When to use JavaScript const? Always declare a variable with const when you know that the value should not be changed. Use const when you declare: A new Array; A new Object; A new Function; A new RegExp

Mar 19, 2025 · The const declaration declares block-scoped local variables. The value of a constant can't be changed through reassignment using the assignment operator, but if a constant is an object, its properties can be added, updated, or removed.

ES6 provides a new way of declaring a constant by using the const keyword. The const keyword creates a read-only reference to a value. By convention, the constant identifiers are in uppercase. Like the let keyword, the const keyword declares blocked-scope variables.

May 24, 2022 · JavaScript class constants. A simple example code declares constants outside the class and adds getters that return the constants in our class.

Feb 23, 2022 · We can declare static constants in our JavaScript class by declaring static getters that returns constants declared outside the class. Also, we can freeze the class with the Object.freeze method since it's a regular object.

Sep 26, 2023 · In this article, we’ll look at how to declare static constants in JavaScript ES6 classes. To declare static constants in our ES6 classes, we can declare constants outside the class and add getters that return the constants in our class. For instance, we can write: constant2 = 2; static get constant1() { return constant1; static get constant2() {

One common way is by using the ‘const’ keyword. By declaring a constant variable within a class, we can ensure that its value remains the same throughout the execution of the program. Another approach involves using the ‘static’ keyword.