Disallow reassigning function declarations

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ID: javascript-best-practices/no-func-assign

Language: JavaScript

Severity: Error

Category: Best Practices


JavaScript interpreters might allow assigning to a function, but it is often a mistake and should not be allowed.

Non-Compliant Code Examples

function foo() {}
foo = bar;

function baz() {
    baz = bar;

var a = function hello() {
  hello = 123;

Compliant Code Examples

var foo = function () {}
foo = bar;

function baz(baz) { // `baz` is shadowed.
    baz = bar;

function qux() {
    var qux = bar;  // `qux` is shadowed.
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