What is the significance of `()=>` in JavaScript when using Selenium?

What is the significance of () => in the following sentence?

()=>{Object.defineProperties(navigator,{webdriver:{get:()=>false}})}

I have only seen this syntax in JavaScript and it seems to be used for configuring page evaluation with Selenium.

This code snippet appears to be related to setting up page evaluation parameters.

Answer №1

()=>{Object.defineProperties(navigator,{webdriver:{get:()=>false}})}

This specific code block demonstrates the use of an arrow function in JavaScript.

An arrow function expression serves as a more concise alternative to a traditional function expression, though with certain differences and limitations:

Arrow functions do not have their own bindings to 'this', 'arguments', or 'super', and should not be utilized as methods.

They cannot be used as constructors; attempting to call them with 'new' will result in a TypeError. Additionally, they lack access to the 'new.target' keyword.

Arrow functions are unable to utilize 'yield' within their body and are not eligible for creation as generator functions.

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Functions/Arrow_functions

The () portion pertains to the parameters, with none provided in this instance during declaration. The content enclosed within the {} braces denotes the function body, indicating that the return value of the function will be

Object.defineProperties(navigator,{webdriver:{get:()=>false}

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