42 3.14159 2E3 1.2e-4 0.9e+1 0xBadFace ---------------------------------------------------- [ ["number", "42"], ["number", "3.14159"], ["number", "2E3"], ["number", "1.2e-4"], ["number", "0.9e+1"], ["number", "0xBadFace"] ] ---------------------------------------------------- Checks for decimal and hexadecimal numbers.