Robinson | Robinson

isArray() function

This API is provided as a preview for developers and may change based on feedback that we receive. Do not use this API in a production environment.

接受一个任意类型判断该类型是否是数组并返回。

Signature:

typescript

declare function isArray(value: any): boolean;

declare function isArray(value: any): boolean;

Parameter	Type	Description
value	any	参数“value”的类型为“any”，这意味着它可以接受任何数据类型。

Returns:

boolean

{boolean} 一个布尔值。

javascript

   let a ="789";
   isArray(a) // false
   let n=[]
   isArray(n)   //true

   let a ="789";
   isArray(a) // false
   let n=[]
   isArray(n)   //true