Javascript split regex question

Question

hello I am trying what I thought would be a rather easy regex in Javascript but is giving me lots of trouble   I want the ability to split a date via javascript splitting either by a  -          and       var date    02-25-2010   var myregexp2   new RegExp  -      dateArray   date split myregexp2     What is the correct regex for this any and all help would be great

User · Accepted Answer

You need the put the characters you wish to split on in a character class, which tells the regular expression engine "any of these characters is a match". For your purposes, this would look like:

date.split(/[.,\/ -]/)

Although dashes have special meaning in character classes as a range specifier (ie [a-z] means the same as [abcdefghijklmnopqrstuvwxyz]), if you put it as the last thing in the class it is taken to mean a literal dash and does not need to be escaped.

To explain why your pattern didn't work, /-./ tells the regular expression engine to match a literal dash character followed by any character (dots are wildcard characters in regular expressions). With "02-25-2010", it would split each time "-2" is encountered, because the dash matches and the dot matches "2".

User · Answer

you could just use   date split  -      or  date split  -

User · Answer

Say your string is   let str    word1 word2 word3 word4 word5 word7 word8 word9 word10     You want to split the string by the following delimiters    Colon Semicolon New line   You could split the string like this   let rawElements   str split new RegExp      n     g       Finally  you may need to trim the elements in the array   let elements   rawElements map element   gt  element trim

User · Answer

Then split it on anything but numbers   date split    0-9

User · Answer

or just  anything but numbers    date split   D

User · Answer

try this instead  date split   W

User · Answer

or just use for date strings 2015-05-20 or 2015 05 20  date split     -

[javascript] Javascript split regex question

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