Package Exports
- is-function-x
This package does not declare an exports field, so the exports above have been automatically detected and optimized by JSPM instead. If any package subpath is missing, it is recommended to post an issue to the original package (is-function-x) to support the "exports" field. If that is not possible, create a JSPM override to customize the exports field for this package.
Readme
is-function-x
Determine whether a given value is a function object.
module.exports(value, [allowClass]) ⇒ boolean ⏏
Checks if value is classified as a Function object.
Kind: Exported function
Returns: boolean - Returns true if value is correctly classified,
else false.
| Param | Type | Default | Description |
|---|---|---|---|
| value | * |
The value to check. | |
| [allowClass] | boolean |
false |
Whether to filter ES6 classes. |
Example
import isFunction from 'is-function-x';
console.log(isFunction()); // false
console.log(isFunction(Number.MIN_VALUE)); // false
console.log(isFunction('abc')); // false
console.log(isFunction(true)); // false
console.log(isFunction({name: 'abc'})); // false
console.log(isFunction(function() {})); // true
console.log(isFunction(new Function())); // true
console.log(isFunction(function* test1() {})); // true
console.log(isFunction(function test2(a, b) {})); // true
console.log(isFunction(async function test3() {})); // true
console.log(isFunction(class Test {})); // false
console.log(isFunction(class Test {}, true)); // true
console.log(
isFunction((x, y) => {
return this;
}),
); // true