You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
11 lines
350 B
11 lines
350 B
exports.lookup = function(obj, field) {
|
|
if (!obj) { return null; }
|
|
var chain = field.split(']').join('').split('[');
|
|
for (var i = 0, len = chain.length; i < len; i++) {
|
|
var prop = obj[chain[i]];
|
|
if (typeof(prop) === 'undefined') { return null; }
|
|
if (typeof(prop) !== 'object') { return prop; }
|
|
obj = prop;
|
|
}
|
|
return null;
|
|
};
|