如何防止“console.log()”函數被覆蓋？

Question

我需要一種方法來防止console.log()被更改/覆蓋（例如： console.log = function(){ return "Hi" } 。起初，我嘗試了Object.freeze(console.log)但這並沒有做任何事情。

Answer 1

您可以凍結對象控制台而不是屬性。 Object.freeze(console)

Answer 2

您可以使用Object.defineProperty使屬性不可寫且不可配置：

 Object.defineProperty(console, 'log', { value: console.log, writable: false, configurable: false }); // Below won't work now, and will throw in strict mode: console.log = () => null; console.log('foobar');

您可能還希望使window.console不可覆蓋：

 Object.defineProperty(console, 'log', { value: console.log, writable: false, configurable: false }); Object.defineProperty(window, 'console', { value: console, writable: false, configurable: false }); // Below won't work now, and will throw in strict mode: console.log = () => null; // Below won't work either: window.console = { dir: () => null }; console.log('foobar'); console.log('barbaz');