Declaration ↔ (process) to create a Variable, usually via Literal

aka Declare, Variable-Declaration, Declare-Variable

Literal

JS Syntax to rep Code as literally written

function

JS Keyword to Declare function (with optional Argument Parameters)

var

JS Keyword to Declare mutable Variable with Function Scope

let

JS Keyword to Declare mutable Variable with Block Scope

const

JS Keyword to Declare read-only named constant Variable with Block Scope

function*

async function

JS Keyword to Declare function with Asynchronous Code to return Promise & allow await inside

return

JS Keyword to specify a single Variable/Expression output from function

Variable Declaration

initial step of creating new Variable by creating a new Identifier

Variable Initialization

next step of assigning value to variable

References

1. Strongly-Typed ↔ of Programming Language to req Type assign for Variable Declaration

2. import ↔ JS Keyword Declaration to import live read-only views on exports

3. TDZ ↔ Region of Code outside Scope of a variable, variable uninitialized from Scope start to Declaration

4. Dynamically-Typed ↔ of Variable not fixed to one Type at Declaration, can be reassigned, only become known at Runtime

5. Template Literal ↔ JS Syntax to Declare string via ` to allow String Interpolation for any Expression via ${}

6. Hoisting ↔ (mechanism) to access Variable before Declaration

7. Global Variable ↔ Variable Declare in Global Scope or Top-Level Code

8. function ↔ JS Keyword to Declare function (with optional Argument Parameters)

9. Object Literal ↔ JS Syntax to Declare & initiate new Object

10. var ↔ JS Keyword to Declare mutable Variable with Function Scope

11. let ↔ JS Keyword to Declare mutable Variable with Block Scope

12. const ↔ JS Keyword to Declare read-only named constant Variable with Block Scope

13. async function ↔ JS Keyword to Declare function with Asynchronous Code to return Promise & allow await inside