Robinson | Robinson

isBoolean() 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.

函数“isBoolean”检查值是否为布尔类型。

Signature:

typescript

declare function isBoolean(value: any): boolean;

declare function isBoolean(value: any): boolean;

Parameter	Type	Description
value	any	参数“value”可以是任何数据类型。

Returns:

boolean

{boolean} 函数 isBoolean 返回一个布尔值。

JavaScript

   let boo = true;
   isBoolean(boo) // true
   let str = "true";
   isBoolean(boo) // false

   let boo = true;
   isBoolean(boo) // true
   let str = "true";
   isBoolean(boo) // false