Better JavaScript — Floating-Point and Coercions

Better JavaScript — Floating-Point and Coercions

Like any kind of apps, JavaScript apps also have to be written well. Otherwise, we run into all kinds of issues later on. In this article, we’ll look at ways to improve our JavaScript code.

Like any kind of apps, JavaScript apps also have to be written well.

Otherwise, we run into all kinds of issues later on.

In this article, we’ll look at ways to improve our JavaScript code.

Floating Point Numbers

Floating-point numbers are tricky in JavaScrtipt because of rounding.

For instance, if we have:

0.1 + 0.2;

Then we get:

0.30000000000000004

Double-precision floating-point numbers can only represent a finite set of numbers, rather than an infinite set of real numbers.

This means that floating-point arithmetic can only produce finite results.

The rounding errors can accumulate when we round in one or more operations.

technology software-development programming javascript web-development

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