42 3.14159 4e8 3.5E-9 0.7e+12 0xBadFace ---------------------------------------------------- [ ["number", "42"], ["number", "3.14159"], ["number", "4e8"], ["number", "3.5E-9"], ["number", "0.7e+12"], ["number", "0xBadFace"] ] ---------------------------------------------------- Checks for numbers.