Returns true
if the specified value is null
, false
otherwise.
Use the strict equality operator to check if the value of val
is equal to null
.
代码片段
const isNull = val => val === null;
使用样例
isNull(null); // true
Returns true
if the specified value is null
, false
otherwise.
Use the strict equality operator to check if the value of val
is equal to null
.
const isNull = val => val === null;
isNull(null); // true