Trace all env variable in JXA script

env.js

ObjC.import('stdlib');

var env = $.NSProcessInfo.processInfo.environment // -[[NSProcessInfo processInfo] environment]
env = ObjC.unwrap(env)
for (var k in env) {
    console.log('"' + k + '": ' + ObjC.unwrap(env[k]))
}


// Helper to get one env variable
// Catch exception if the env variable not exists
const getenv = (varName) => {
    // Handle exception: Error: exception raised by object: *** +[NSString stringWithUTF8String:]: NULL cString (-2700)
    try {
        return $.getenv(varName)
    } catch (e) {
        return null
    }
}