Returns true if the given object is a Function. Otherwise, returnsfalse.
const util = require('util');
function Foo() {}
const Bar = () => {};
util.isFunction({});
// Returns: false
util.isFunction(Foo);
// Returns: true
util.isFunction(Bar);
// Returns: true
Since v4.0.0 - Use typeof value === 'function' instead.
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Returns
trueif the givenobjectis aFunction. Otherwise, returnsfalse.Deprecated
Since v4.0.0 - Use
typeof value === 'function'instead.