Get nested object property using dot notation

getProperty.js

/*
* Get nested object property using dot notation
* */

const getProperty = ( propertyName, object ) => {
    let parts = propertyName.split( "." ),
        length = parts.length,
        i,
        property = object || this;

    for ( i = 0; i < length; i++ ) {
        property = property[parts[i]];
    }

    return property;
};