Episode #17: Numeric Literal Separator

Representing big numbers:

const ASTRONOMICAL_UNIT = 149597870700; const SPEED_OF_LIGHT = 299792458; const EARTH_RADIUS = 6378137;

const ASTRONOMICAL_UNIT = 149_597_870_700; const SPEED_OF_LIGHT = 299_792_458; const EARTH_RADIUS = 6_378_137;

Also works for floats, hexadecimal, octal, and binary: $π = 3.141_592_653_589_793_238_462_643_383_279_502_884_197_169_399_375_105_820_974_944_592_307_816_406_286_208_998_628_034_825_342_117_067_982_148_086_513_282_306_647_093_844_609_550_582_231_725_359_408; $ttwatch = 0x0085_0001; $perms = 04_755; $gpio = 0b01010100_01101000_01100101_01101111;

To avoid: $phoneNumber = 44_7503_067089; $creditCard = 4231_6547_9081_2543; $socialSecurity = 111_11_1111;