patterns for scientific application

[danziamo]

regex for frequency

const re = /^(\d?\.?\d+(?:e\d)?){1}\s?([kKmMG]?(?:Hz)?)?$/

2.34 MHz should match 1.56e4 Hz should match 55 should match .44Hz should match 144 MHz should match 0.24 MHz should match 44 z not match 144t not match

[piranna]

The pattern is bad, {1} is superfluous and you are making the unit optional, so 1m would match.

[danziamo]

@piranna. Thank you. It really doesn't work. Any other working options?

[danziamo]

const re = /^([-+]?\d*\.?\d+(?:[eE][-+]?\d+)?) ?([KkMm]?[Hh][Zz])?$/