util.isFunction()

util.isFunction(object)

Stability: 0 - Deprecated

Returns true if the given "object" is a Function. Otherwise, returns false.

const util = require('util');

function Foo() {}
var Bar = function() {};

util.isFunction({})
  // false
util.isFunction(Foo)
  // true
util.isFunction(Bar)
  // true

Links:

https://nodejs.org/dist/latest-v5.x/docs/api/util.html#util_util_isfunction_object

doc_Nodejs

2025-01-10 15:47:30

Comments

Popular Articles

_.isFunction isFunction_.isFunction(object) Returns true if object is a Function. _.isFunction(alert); => true

_.isFunction _.isFunction(value) source npm package Checks if value is classified as a Function object. Since 0.1.0 Arguments value (*): The value to check. R

inspect.isfunction() inspect.isfunction(object) Return true if the object is a Python function, which includes functions created by a lambda expression.

jQuery.isFunction() Determine if the argument passed is a JavaScript function object. Note: As of jQuery 1.3, functions provi

lua_isfunction lua_isfunction[-0, +0, –] int lua_isfunction (lua_State *L, int index); Returns 1 if the value at the given index is a function (either C or Lua),