function myReplace(str, before, after) { let regExp = /^[A-Z]/; // checks if a word starts with capital letter let replaceIndex = str.toLowerCase().split(' ').indexOf(before.toLowerCase()); //replace index splits the string and returns the index of the word to be replaced if(regExp.test(str.split(' ')[replaceIndex])){ return str.replace(new RegExp(`${before}`, 'i'), after.replace(after.charAt(0), after.charAt(0).toUpperCase())) // this checks if the word to be replaced (before) starts with a capital letter and changes the first letter //and changes the first letter of the replacement word (after) to uppercase if it is true // it then replaces the word to be replaced (before) with our new replacement word (after) that has an // first letter }else{ return str.replace(new RegExp(`${before}`, 'i'), after.replace(after.charAt(0), after.charAt(0).toLowerCase())) // if the first condition returned false, this converts the first letter of the replacement word (after) // to lowercase and then replaces the word to be replaced (before) with our new replacement word (after) // that has it's first letter now in lowercase }
}
console.log(myReplace("He is sleeping on the couch", "Sleeping", "Sitting")); // he is sitting on the couch
console.log(myReplace("He is Sleeping on the couch", "Sleeping", "sitting")); // he is Sitting on the couch

SELECT * FROM `wp_vgf1zswtz1_posts` WHERE post_content LIKE '%intooglobal.flywheelsites%'

- name: Find-and-replace strings uses: mad9000/actions-find-and-replace-string@2