Javascript 中的数字在声明为变量后会发生变化。 即使从字符串中解析它也会返回错误的数字

Question

This is very weird please check it yourself.

Whenever I try to declare variable with the number 76561198322368902 it always changes to 76561198322368900 no matter what. Chrome Devtools Console Screenshot

Even when I pass the variable as a string and later parse to a number, it always changes to 76561198322368900.

I really don't know what to do. I never thought Integers were capable of such thing.

Answer 1

The " maximum safe integer " in JavaScript is 9007199254740991 - trying to use the number type beyond this can yield unpredictable results.

Use the BigInt type if you need a bigger number.

Answer 2

你刚刚超过了 Number.MAX_SAFE_INTEGER