Web Reference: This video is an introduction to the let Keyword in JavaScript. Part 4 of 6. Part of a series of video tutorials to learn JavaScript for beginners!...more Jul 8, 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. Jan 16, 2026 · JavaScript provides three ways to declare variables: var, let, and const, but they differ in scope, hoisting behaviour, and re-assignment rules. var: Declares variables with function or global scope and allows re-declaration and updates within the same scope.
YouTube Excerpt: This video is an introduction to the let Keyword in
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