How to use regular expressions in search in VScode?

Question

Regular Expressions

there is a string of the form {"name":"name","lastname":"lastname}, there is also a string that does not contain lastname {"name":"name"}, how to find all lines that do not contain lastname?
"name":"* " => this is how it finds all strings with name I can't correctly escape open closed quotes to find everything that will only look like this {"name":"*"}, so I'm asking for help to find all strings like this {"name": "*"},

Answer 1

{"name":"[^"]*"}