Some common Javascript Regular Expressions

Some common Javascript Regular Expressions

"^/D + $" // non-negative integer (positive integer + 0)
"^ [0-9] * [1-9] [0-9] * $" // positive integer
"^ (-/D +) | (0 +) $" // non-positive integer (negative integer + 0)
"^-[0-9] * [1-9] [0-9] * $" // negative integer
"^ -? /D + $ "// integer
"^/D + (/./d + )? $ "// Non-negative floating point number (Positive floating point number + 0)
"^ ([0-9] + /. [0-9] * [1-9] [0-9] *) | ([0-9] * [1-9] [0-9] */. [0-9] +) | ([0-9] * [1-9] [0-9] *) $ "// Positive floating point number
"^ (-/D + (/./d + )?) | (0 + (/. 0 + )?)) $ "// Non-Positive floating point number (negative floating point number + 0)
"^ (-([0-9] + /. [0-9] * [1-9] [0-9] *) | ([0-9] * [1-9] [0-9] */. [0-9] +) | ([0-9] * [1-9] [0-9] *) $ "// negative floating point number
"^ (-? /D +) (/./d + )? $ "// Floating point number
"^ [A-Za-Z] + $" // a string consisting of 26 English letters
"^ [A-Z] + $" // a string consisting of 26 uppercase letters
"^ [A-Z] + $" // a string consisting of 26 lowercase letters
"^ [A-Za-z0-9] + $" // string consisting of digits and 26 letters
"^/W + $" // a string consisting of digits, 26 letters, or underscores
"^ [/W-] + (/. [/W-] +) * @ [/W-] + (/. [/W-] +) + $ "// email address
"^ [A-Za-Z] +: // (/W + (-/W + )*)(/. (/W + (-/W + )*))*(/? /S *)? $ "// URL
/^ (D {2} | D {4})-(0 ([1-9] {1}) | (1 [1 | 2]) -([0-2] ([1-9] {1}) | (3 [0 | 1]) $ // year-month-day
/^ (0 ([1-9] {1}) | (1 [1 | 2]) /([0-2] ([1-9] {1}) | (3 [0 | 1]) /(d {2} | D {4}) $ // month/day/year
"^ ([W-.] +) @ ([0-9] {1, 3 }. [0-9] {1, 3 }. [0-9] {1, 3 }.) | ([w-] + .) +) ([A-Za-Z] {2, 4} | [0-9] {1, 3}) (]?) $ "// Emil
"(D + -)? (D {4 }-? D {7} | D {3 }-? D {8} | ^ d {7, 8}) (-D + )? "// Phone number
"^ (D {1, 2} | 1dd | 2 [0-4] d | 25 [0-5]). (d {1, 2} | 1dd | 2 [0-4] d | 25 [0-5]). (d {1, 2} | 1dd | 2 [0-4] d | 25 [0-5]). (d {1, 2} | 1dd | 2 [0-4] d | 25 [0-5]) $ "// ip address