I have found very similar posts, but I can\'t quite get my regular expression right here.
I am trying to write a regular expression which returns a string which is b
I find regex to be tedious and time consuming given the syntax. Since you are already using javascript it is easier to do the following without regex:
const text = 'My cow always gives milk'
const start = `cow`;
const end = `milk`;
const middleText = text.split(start)[1].split(end)[0]
console.log(middleText) // prints "always gives"