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javaScript - Disable Number.MAX_SAFE_INTEGER [duplicate]

This question already has answers here:
Extremely large numbers in javascript
(5 answers)
Alternative to Math.max and Math.min for BigInt type in Javascript
(2 answers)
Closed 9 months ago.
I created a component to calculate the power of numbers
but the problem is Number.MAX_SAFE_INTEGER.
how can I calculate a larger number like 5^200 in my app completely without rounding?
Math.pow(5,200) // it loged `infinity`

toFixed in chrome broken? [duplicate]

This question already has answers here:
Why toFixed() rounding is so strange [duplicate]
(1 answer)
Is floating point math broken?
(31 answers)
Javascript toFixed Not Rounding
(23 answers)
Rounding in Javascript toFixed() method [duplicate]
(2 answers)
Closed 3 years ago.
I was breaking my head debugging the rounding in some application and it boiled down to this:
(1.445).toFixed(2) // rounding as expected = 1.45
"1.45"
(85.485).toFixed(2) // what??? should be 85.49!
"85.48"
The number itself 85.485 can be displayed as such, so it doesn't seem a power of 2 float problem...
Any Idea why this is happening?

javascript - long decimal float number accuracy [duplicate]

This question already has answers here:
How to deal with floating point number precision in JavaScript?
(47 answers)
Is it possible to achieve arbitrary-precision arithmetic with no rounding issues in JavaScript?
(1 answer)
javascript - More accurate value of Pi? [duplicate]
(2 answers)
Closed 4 years ago.
I'm trying to do some floating number calculation with javascript that requires high accuracy
when I tried to initiate a variable like this:
const pi = 3.141592653589793238462643383280
System will truncate number to
>pi
>3.141592653589793
How can I do calculating with long decimal digits? thanks!

You can use a library like say for example http://mikemcl.github.io/decimal.js/

Browser wrong javascript float calculation? [duplicate]

This question already has answers here:
Why does floating-point arithmetic not give exact results when adding decimal fractions?
(31 answers)
Closed 7 years ago.
If you put this in the browser address bar (firefox/IE8):
javascript:alert(40.34+56.87)
Why the result comes as 97.2100000000001
when its supposed to be 97.21

javascript:alert((40.34+56.87).toFixed(2))

Strange results when multiplying 3 by 1.1 [duplicate]

This question already has answers here:
How to deal with floating point number precision in JavaScript?
(47 answers)
Closed 8 years ago.
When I multiply 3 * 1.1 in JavaScript instead of returning 3.3, it results in 3.30000000000000003, Why is this?

That's because numbers in computers are represented as floating point numbers, which have limited precision. Some operations will cause tiny errors and there's nothing you can do about that.
It's also a reason to never compare numbers using ==.