Are JavaScript Primitives Actually Objects?

In this tutorial we revisit and important yet fundamental concept in JavaScript: The object wrapper associated with primitives.

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[Martin]

What would be the purpose of using the constructor method, with the 'new' keyword, if the primative method is just as useful?

[bmehder]

Please consider embracing dark mode. Great tutorials. I just have to wear sun glasses. I look super cool when I watch your videos. 😎

[batchrocketproject]

I wonder in what cases it might be necessary to create object versions of primitives.

Time spent experimenting in the console is worthwhile to consolidate understanding of this as, in addition to primitives versus objects, other factors come into play when comparing variables - equality versus strict equality, coercion, and the fact that the object methods (valueOf, toString, toUpperCase etc.) return literals, not objects...

const numOb = new Number(4);
numOb === 4; // false
numOb == 4; // true
numOb == "4" // true
numOb === "4" // false
numOb.valueOf() == 4 // true
numOb.valueOf() == "4" // true
numOb.valueOf() === 4 // true
numOb.valueOf() === "4" // false
numOb.toString() == "4"; // true
numOb.toString() == 4; // true
numOb.toString() === "4"; // true
numOb.toString() === 4; // false

[OsoweFunmilayo]

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