float js precision
// JavaScript uses the 64-bit IEEE-754 floating point standard for storing numbers const num = 314.15926535; // toFixed(n) will convert a float to a string with n digits after the decimal point num.toFixed() // "314" (same as num.toFixed(0)) num.toFixed(2) // "314.16" num.toFixed(6) // "314.159265" // toPrecision(n) will convert a float to a string with n digits total num.toPrecision() // "314.15926535" (same as input) num.toPrecision(2) // "3.1e+2" (sometimes will be in scientific notation) num.toPrecision(6) // "314.159"