Regex - filter out specific pattern of string

I'm trying to filter out this specific pattern out of a string

myAttribute="myValue"

But I can't seem to figure out on how to ignore the quotes / symbols found inside the 'main' quotes.. If this doesn't make sense, here are few examples:

Examples:

1) onclick="console.log("Hello world"));"   <  must ignore the double quotes in onclick, must return match 1: onclick, match 2: console.log("Hello world"));
2) onclick='console.log('Hello world'));'   <  must ignore the single quotes in onclick, must return match 1: onclick, match 2: console.log('Hello world'));
3) onclick="console.log('Hello world'));"   <  must return match 1: onclick, match 2: console.log('Hello world'));
4) onclick="console.log(\"Hello world\"));" <  must return match 1: onclick, match 2: console.log(\"Hello world\"));
5) onclick="document.querySelector('[data-uniqueid=\"my-id\"]').outerHTML = '';"
   ^ must return (NOTE THE '=' SYMBOL) match 1: onclick, match 2: document.querySelector('[data-uniqueid=\"my-id\"]').outerHTML = '';

This is my current Regular Expression:

(\S+)=["'].*["']$

NOTE: It actually has to ignore every single character found between the 'main' quotes and support multiple attributes (so onclick="myValue" onmouseover="alert('hello world!');") as one string).