return switch case values as an object

js

function grabSwitchCaseValues(string) {
    let parseArr = string.split('\n');
    let freshObj = {}
    for (let i=0;i<parseArr.length;i=i+2) { let lan = parseArr[i].substring(parseArr[i].indexOf('"') + 1, parseArr[i].lastIndexOf('"')); const returnVal = parseArr[i+1].substring(parseArr[i+1].indexOf('"') + 1, parseArr[i+1].lastIndexOf('"')); freshObj[lan] = returnVal}
    console.log(freshObj)
}
grabSwitchCaseValues(`case "yoruba":
      return "yo";
    case "shona":
      return "sn";
    case "zulu":
      return "zu";`
)