Lodash教程

Lodash isNil method

语法

_.isNil(value)
Checks if value is null or undefined.

参数

value (*) − The value to check.

输出

(boolean) − Returns true if value is nullish, else false.

实例

var _ = require('lodash');
console.log(_.isNil(null));
console.log(_.isNil(NaN));
Save the above program in tester.js. Run the following command to execute this program.

Command

\>node tester.js

输出

true
false
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