Re: How do I make these into a real type?

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Posted by Jon Hanlon on August 24, 2000 at 19:30:36:

Use the parseFloat method, once you've ascertained that the string is a valid real number:
function whatAmI(str) {

var reWhitespace = /^\s+$/
var reLetter = /^[a-zA-Z]$/
var reAlphabetic = /^[a-zA-Z]+$/
var reAlphanumeric = /^[a-zA-Z0-9]+$/
var reDigit = /^\d/
var reLetterOrDigit = /^([a-zA-Z]|\d)$/

var reInteger = /^\d+$/
var reSignedInteger = /^[+-]?\d+$/
var reReal = /^((\d+(\.\d*)?)|((\d*\.)?\d+))$/
var reSignedReal = /^(([+-]?\d+(\.\d*)?)|([+-]?(\d*\.)?\d+))$/

if (reAlphanumeric.test(str)) alert("Alphanumeric ");
if (reReal.test(str)) alert("Real ");
if (reSignedReal.test(str)) alert("SignedReal");
// etc...
}

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