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JavaScript Declaring Variables in JavaScript

Posted by Stefan Schraberger
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Stefan Schraberger
Front End Web Development Techdegree Student 8,873 Points

Is let an abbreviation for something?

Would be interesting haha

1 Answer

Richard Verbraak
Richard Verbraak
7,739 Points
Richard Verbraak
Richard Verbraak
7,739 Points

It is not an abbreviation like const is for constant. Let is actually used in formalized mathematics. Without bogging you down with mathematical details and the likes.

Let is used in mathematics as: let X be this and let Y be that. In a way, let and scope (which let and const are used for) goes hand in hand, the same way as it does in mathematics.

In mathematics, you let X be something else when entering a new formulae/idea. This also applies to coding, when the let variable only contains this value in this scope(formulae/idea) and not anywhere else.

Hopefully this doesn't sound like complete nonsense, I'm not that great of formulating my thought process towards others.