Avoid new operators with the Function object

Cette page n'est pas encore disponible en français, sa traduction est en cours.
Si vous avez des questions ou des retours sur notre projet de traduction actuel, n'hésitez pas à nous contacter.

Metadata

ID: typescript-code-style/no-new-func

Language: TypeScript

Severity: Warning

Category: Best Practices

Description

The Function constructor can lead to code similar to eval executions. Use function declarations instead of the Function constructor.

Non-Compliant Code Examples

var a = new Function("b", "c", "return b+c");
var a = Function("b", "c", "return b+c");
var a = Function.call(null, "b", "c", "return b+c");
var a = Function.apply(null, ["b", "c", "return b+c"]);
var a = Function.bind(null, "b", "c", "return b+c")();
var a = Function.bind(null, "b", "c", "return b+c");
var a = Function["call"](null, "b", "c", "return b+c");
var a = (Function?.call)(null, "b", "c", "return b+c");
const fn = () => { class Function {} }; new Function('', '');
var fn = function () { function Function() {} }; Function('', '');

Compliant Code Examples

var a = new _function("b", "c", "return b+c");
var a = _function("b", "c", "return b+c");
// Scoped re assign not supported
// class Function {}; new Function()
// const fn = () => { class Function {}; new Function() }
// function Function() {}; Function()
// var fn = function () { function Function() {}; Function() }
// var x = function Function() { Function(); }
call(Function)
new Class(Function)
foo[Function]()
foo(Function.bind)
Function.toString()
Function[call]()
https://static.datadoghq.com/static/images/logos/github_avatar.svg https://static.datadoghq.com/static/images/logos/vscode_avatar.svg jetbrains

Seamless integrations. Try Datadog Code Analysis