Type check between integer and float type

Question

what is maximum precision check we do for float and integer ?

 0 === 0.00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001 

true // output

score 1 · Answer 1 · answered Jul 27 '22 at 05:21

1

Looking at:

> Number.MIN_VALUE
< 5e-324

Versus:

> '0.000--etc--0001'.length
< 487

We can see that your number is smaller than the allowable minimum non-zero float, so it gets rounded down to zero, making the expression effectively:

> 0 === 0.0
< true

answered Jul 27 '22 at 05:21

Ken Y-N

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It's not that simple: `(1 + Number.MIN_VALUE) === 1` evaluates to `true` – jsejcksn Jul 27 '22 at 05:43

score 0 · Answer 2 · edited Jul 27 '22 at 10:59

0

Javascript, Typescript has the only type of Number. By default, you can not declare float type. But you check the float value. I think you have the answer here. here

edited Jul 27 '22 at 10:59

Ken Y-N

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answered Jul 27 '22 at 05:21

Abir Mahmud

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7

Type check between integer and float type

2 Answers2