findObjectValueByProp

/// see for more examples https://stackoverflow.com/questions/8817394/javascript-get-deep-value-from-object-by-passing-path-to-it-as-string

const config = {

a:'a',

b:'b',

c:{

s:'r',

t:{

s:'terst'

}

}

};

var obj = {

foo: { bar: 'baz' }

};

const getValue = (obj, item) =>{

items=item.split('.')

for (var i=0, len=items.length; i<len; i++){

obj = obj[items[i]];

}

return obj;

};

//console.log(getValue(config, 'c.s'));

function test(obj, path) {

path.split('.').forEach(prop => {obj = obj[prop]});

return obj

}

// below one is the best option

const lens = (obj, path) => path.split(".").reduce((o, key) => o && o[key] ? o[key] : undefined, obj);

console.log(lens(config, 'c.t'))

//console.log(test(config, 'c.t.s'))