Why does the first fuunction of let output true and the second one false?

Asim Malik 0
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Why does maxNum and textMax be true when the code is ran and testMin and minNum become false? I am pretty confused about this. Does this have to do with the let function in js?

let maxNum = Number.MAX_VALUE; 
let testMax = maxNum + 10; 
console.log(maxNum, testMax, maxNum === testMax); 
 
let minNum = Number.MIN_VALUE; 
let testMin = minNum / 10; 
console.log(minNum, testMin, minNum === testMin);

javascript
1 Answers

Number.MAX_VALUE is the maximum non-infinity, non-BigInt number that can be represented in the engine. If you try to add a value to Number.MAX_VALUE above the last digit of precision (such as 1e302), you'll get Infinity. (If you try to add a value below the last digit of precision, it'll just be dropped, and you'll still be left with Number.MAX_VALUE)

Number.MIN_VALUE is somewhat similar - it's the smallest positive non-zero number that can be represented. It's not possible to go any lower without reaching 0. If you divide Number.MAX_VALUE by 10, you'll get a number too close to 0 to be represented as anything else, so the engine gives you 0 in response.

CertainPerformance0
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