Lodash hasIn method
语法
Checks if path is a direct or inherited property of object.
参数
object (Object) − The object to query.
path (Array|string) − The path to check.
输出
(boolean) − Returns true if path exists, else false.
实例
var _ = require('lodash');
var object = _.create({ 'a': _.create({ 'b': 2 }) });
var result = _.hasIn(object, 'a');
console.log(result);
result = _.hasIn(object, ['a','b']);
console.log(result);
Save the above program in
tester.js. Run the following command to execute this program.
Command
输出
