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9 gru 2015 · var dateReg = /^\d {2} [./-]\d {2} [./-]\d {4}$/. Or better still, match the character class for the first seperator, then capture that as a group ( [./-]) and use a reference to the captured group \1 to match the second seperator, which will ensure that both seperators are the same:
A regex is good for matching the general format but I think you should move parsing to the Date class, e.g.: function parseDate(str) { var m = str.match(/^(\d{1,2})\/(\d{1,2})\/(\d{4})$/); return (m) ? new Date(m[3], m[2]-1, m[1]) : null; }
18 maj 2023 · Regular expressions let you match any string, be it in the form of various user inputs such as username, password, URL, and even different date formats. In this article, I’ll show you several ways you can match a date with regular expressions.
25 lip 2024 · Uses a regular expression or a fixed string to break a string into an array of substrings. When you want to know whether a pattern is found in a string, use the test() or search() methods; for more information (but slower execution) use the exec() or match() methods.
25 lip 2024 · Matches the same substring matched by the nth capturing group in the regular expression (counting left parentheses). For example, /apple(,)\sorange\1/ matches "apple, orange," in "apple, orange, cherry, peach".
25 lip 2024 · The match() method of String values retrieves the result of matching this string against a regular expression. Try it. Syntax. js. match(regexp) Parameters. regexp. A regular expression object, or any object that has a Symbol.match method.
RegExr is an online tool to learn, build, & test Regular Expressions (RegEx / RegExp). Supports JavaScript & PHP/PCRE RegEx. Results update in real-time as you type. Roll over a match or expression for details. Validate patterns with suites of Tests. Save & share expressions with others.
