Efficient methods to reach the desired result using Selenium WebDriver promises

Question

Efficient methods to reach the desired result using Selenium WebDriver promises

After working on a piece of code that utilizes Selenium WebDriver to retrieve the text of an element, I am wondering if there is a more concise way to accomplish this task?

async function getText(driver, locator) {
    return await (await driver.findElement(locator)).getText();
}

I anticipate having to write similar functions that involve multiple promise chains, and want to avoid creating messy code. Ideally, I'm seeking a cleaner and simpler approach.

The primary objective of the function is to return the text without returning a promise.

javascript node.js selenium-webdriver promise async-await

Answer 1

Answer №1

A more elegant and easily readable approach to handling promises in general is by utilizing temporary variables:

async function fetchData(apiUrl) {   
    const response = await fetch(apiUrl);
    return response.json();
}

There is no need to include return await unless it is enclosed within a try block.

Selenium utilizes enhanced promises that enable the scheduling of promise chains internally. You can schedule the fetchData operation on a ResourcePromise, resulting in a promise for the data:

function fetchData(apiUrl) {
    return fetch(apiUrl).then(response => response.json());
}

Selenium was structured in this manner to write code that mimics synchronous behavior prior to the introduction of async..await. The underlying principle still remains asynchronous.

The function should simply return the fetched data, I do not want it to return a promise.

This presents a specific instance of this issue. Once a piece of code becomes asynchronous, reverting back to synchronous execution is not possible. When promises are utilized, the entire call stack must adhere to their usage for proper control flow.

Answer 2

A more elegant and easily readable approach to handling promises in general is by utilizing temporary variables:

async function fetchData(apiUrl) {   
    const response = await fetch(apiUrl);
    return response.json();
}

There is no need to include return await unless it is enclosed within a try block.

Selenium utilizes enhanced promises that enable the scheduling of promise chains internally. You can schedule the fetchData operation on a ResourcePromise, resulting in a promise for the data:

function fetchData(apiUrl) {
    return fetch(apiUrl).then(response => response.json());
}

Selenium was structured in this manner to write code that mimics synchronous behavior prior to the introduction of async..await. The underlying principle still remains asynchronous.

The function should simply return the fetched data, I do not want it to return a promise.

This presents a specific instance of this issue. Once a piece of code becomes asynchronous, reverting back to synchronous execution is not possible. When promises are utilized, the entire call stack must adhere to their usage for proper control flow.

Efficient methods to reach the desired result using Selenium WebDriver promises

Answer №1

Similar questions

Troubleshooting multiple handler problem in Express router

I encountered an issue when sending a PATCH request via Hoppscotch where the request body content was returned as 'undefined', although the username and ID were successfully

Automate the process of saving information to Google Sheets using Google AppScript

Does the CSV stream parser (PapaParse) cause rendering delays?

Enlarge the div with a click

Refresh the HTML content within a specified div element

Steps for incorporating the getElementByClassName() method

Executing a CRM javascript button triggers a request to a JSON URL and extracts a specific value

Press the key to navigate to a different page

Here's a guide on how to package and send values in ReactJs bundles

Packaging a NodeJS project in Visual Studio - A step-by-step guide to creating and setting up an N

Executing functions and MongoDB queries within a setTimeout function in a Meteor application

Is there a way to transform this Json array into a format that JQuery can interpret easily?

Troubleshooting KuCoin API: Dealing with Invalid KC-API-SIGN Error and FAQs on Creating the Correct Signature

Is it advisable to implement the modular pattern when creating a Node.js module?

What is the best way to integrate ES6 ReactJS code into an Express application?

Send all state values to the child component

How can you dynamically disable a radio option button using Angular rendering without relying on an ID?

Trouble with text box focus functionality

Learn the process of sending notifications upon clicking on an advertisement by a user