This question already has answers here:
What is JavaScript's highest integer value that a number can go to without losing precision?
(21 answers)
Closed 1 year ago.
When i try to log this number 11321144241322243122 into the console it always gets converted to this number 11321144241322244000. This happens in node.js and in the browser console.
11321144241322243122 is bigger than Number.MAX_SAFE_INTEGER.
Instead, convert it to a BigInt:
console.log(BigInt("11321144241322243122").toString())
console.log(11321144241322243122)
Related
This question already has answers here:
Why parseFloat in javascript returns string type for me?
(2 answers)
Closed 4 years ago.
In my JS, I'm doing a check to see if one number is greater than the other. I'm attaching the image of Chrome DevTools:
As you can see here, the code has made it inside the if statement. On the right, in the Watch, you can see amount = "3.00" and available = "261.60".
What would cause the smaller number to be greater than the bigger number?
You are are comparing strings. In the code you are calling parseFloat, which is the right idea, but it's followed by toFixed(). toFixed() returns a string.
console.log(typeof parseFloat("3.00").toFixed(2))
You need to make sure you're comparing numbers. An easy way is:
if(+amount > +available)
Alternatively, don't call toFixed() until it's time to display the number.
This question already has answers here:
How is the parseInt in JavaScript defined to handle large "numbers" - is there an ECMA leak? I got a wow here
(3 answers)
Why is parseInt() not converting my String of numbers correctly?
(1 answer)
Closed 4 years ago.
Here is my string: "6145390195186705543"
I have tried parseInt with different radix values. I have tried the Number() method. And I have tried multiplying it by one. They all give back 6145390195186705000
Why is this??
This question already has answers here:
How to deal with floating point number precision in JavaScript?
(47 answers)
Closed 5 years ago.
I am facing weird issue during rounding the value using javascript. Some of the value is not rounding in correct format.
var n =17.955 ;
var roundedPrice;
roundedPrice = Math.round(n*100)/100;
console.log(roundedPrice); // It returns 17.95 instead of 17.96
It is happening for some specific values like 16.955, 17.955, 18.955, 19.955. Except these values like 1.955, 12.955, 20.955, 27.955 ... This round function return correct values.
Edited : It is happening with 17.955 only. This returns correct result with 17.9555 ( 3 times 5).
Thanks in advance.
You can use either Math.ceil() to get the expected result.
This question already has answers here:
Large integers in javascript (more the 2^53-1)
(2 answers)
What is JavaScript's highest integer value that a number can go to without losing precision?
(21 answers)
Closed 7 years ago.
I am making a calculator in JavaScript that needs to be able to do precise math on numbers larger than 2^53, which is 9007199254740992. Is there any way to do this?
You can use the "strint" library https://github.com/rauschma/strint.
For example:
> var strint = require("./strint");
> strint.add("9007199254740992", "1")
'9007199254740993'
This question already has answers here:
How to deal with floating point number precision in JavaScript?
(47 answers)
Closed 8 years ago.
In javascript console type in 79.99 * 100
instead of 7999 we get 7998.999999999999
This occurs only with specific digits(80.99,80.01) etc.
Does not occur with 89.99,99.99 etc.
Is this a bug with Javascript?
Abhi.
Yes. Javascript handles numbers differently and there's a problem with javascript number handler in some cases. This can be achieved by:
function strip(number) {
return (parseFloat(number.toPrecision(12)));
}
strip(79.99*100);