Hi Kelly,
use Regular Expressions <https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp>. This should be the easiest way to go: --- var matching = "matching string 12345"; var not_matching = "not matching string 12a42"; // This checks if the last five characters are digits var regex = /\d{5}$/; alert( regex.test( matching ) ); alert( regex.test( not_matching ) ); --- Waldemar Bartikowski ________________________________ From: Code for Libraries <CODE4LIB@LISTS.CLIR.ORG> on behalf of Zhu, Kaile NAF USARMY IMCOM HQ (US) <kaile.zhu....@mail.mil> Sent: Thursday, January 18, 2018 10:47 To: CODE4LIB@LISTS.CLIR.ORG Subject: [CODE4LIB] javascript help (UNCLASSIFIED) CLASSIFICATION: UNCLASSIFIED Anybody can help me with such JavaScript code that can chop the ending portion of the string - last 5 characters - verifying if it is all numbers (zip code)? Thanks. Kelly Zhu CLASSIFICATION: UNCLASSIFIED
