front/api/0_wm.js
function getError(errno, app) {
	let errObj = {
		errno: errno,
		message: errors[errno].replace('$app', app)
	};
	return errObj.message;
}
function getError(errno, app) {
	let errObj = {
		errno: errno,
		message: errors[errno].replace('$app', app)
	};
	return errObj.message;
}
function getError ( errno , app ) { let errObj = { errno : errno , message : errors [ errno ] . replace ( '$app' , app ) } ; return errObj . message ; }
Contains all options that windows have. NOT RECOMMENDED to rely on.
Contains all options that windows have . NOT RECOMMENDED to rely on .