Regular Expression To Detect Double Quoted Javascript Object Properties With Brackets

There are three ways to access JavaScript Object property. someObject.propertyName someObject['propertyName'] // with single quote ' someObject['propertyName'] // with double quot

Solution 1:

But I couldn't write regular expression for the properties of the form someObject["propertyName"]:

You can use this regex:

\bsomeObject\[\s*(['"])(.+?)\1\s*\]

RegEx Demo

Or to match any object:

\b\w+\[\s*(['"])(.+?)\1\s*\]

In C#, regex would be like

Regexregex=newRegex(@"\bsomeObject\[\s*(['""])(.+?)\1\s*]");

RegEx Breakup:

\b      # word boundary
\w+     # match any word
\[      # match opening [
\s*     # match 0 or more whitespaces
(['"])  # match ' or " and capture it in group #1
(.+?)   # match 0 or more any characters
\1      # back reference to group #1 i.e. match closing ' or "
\s*     # match 0 or more whitespaces
\]      # match closing ]