24 lines
775 B
JavaScript
24 lines
775 B
JavaScript
|
//
|
||
|
|
'use strict';
|
||
|
|
|
||
|
|
// Resolves property names or property paths defined with period-delimited
|
||
|
|
// strings or arrays of strings. Property names that are found on the source
|
||
|
|
// object are used directly (even if they include a period).
|
||
|
|
// Nested property names that include periods, within a path, are only
|
||
|
|
// understood in array paths.
|
||
|
|
function getPropertyByPath(source , path ) {
|
||
|
|
if (typeof path === 'string' && source.hasOwnProperty(path)) {
|
||
|
|
return source[path];
|
||
|
|
}
|
||
|
|
|
||
|
|
const parsedPath = typeof path === 'string' ? path.split('.') : path;
|
||
|
|
return parsedPath.reduce((previous, key) => {
|
||
|
|
if (previous === undefined) {
|
||
|
|
return previous;
|
||
|
|
}
|
||
|
|
return previous[key];
|
||
|
|
}, source);
|
||
|
|
}
|
||
|
|
|
||
|
|
module.exports = getPropertyByPath;
|