javascript - 检查变量是否为函数类型(Check if a variable is of function type)

Question

Suppose I have any variable, which is defined as follows:

(假设我有任何变量，定义如下：)

var a = function() {/* Statements */};

I want a function which checks if the type of the variable is function-like.

(我想要一个函数来检查变量的类型是否像函数一样。)

ie :

(即：)

function foo(v) {if (v is function type?) {/* do something */}};
foo(a);

How can I check if the variable a is of type Function in the way defined above?

(如何以上面定义的方式检查变量a是否为Function类型？)

  ask by Jesufer Vn translate from so

Answer 1

if (typeof v === "function") {
    // do something
}