JavaScript - min floating-point number value

In JavaScript, min floating-point number value can be achieved using -Number.MIN_VALUE what is equal to -1.7976931348623157e+308 (what is equivalent for min double value in other languages, e.g. Java).

Quick solution:

// ONLINE-RUNNER:browser;

console.log(-Number.MAX_VALUE);  // -1.7976931348623157e+308

Warning: do not confuse Number.MIN_VALUE with minimal floating-point value - it returns min positive floating-point value.

Min positive floating-point number value

Sometimes it is necessary to know minimal positive floating-point number value. To get its we can use Number.MIN_VALUE.

// ONLINE-RUNNER:browser;

console.log(Number.MIN_VALUE);  // 5e-324

See also

1. JavaScript - max floating-point number value