Check out example codes for "how to find selenium webelement java". It will help you in understanding the concepts better.

Code Example 1

//required imports 
WebDriver driver = new ChromeDriver();
WebElement objWE;
//There are many way most common are id and xpath
objWE = driver.findElement(By.id("String of id attribute"));
//To find the xpath easily hit F12 and right click the element you want
//and copy xpath then paste it
objWE = driver.findElement(By.xpath("//*[@id="search"]/div[2]/div[6]/div[1]/div/div"));

Learn ReactJs, React Native from akashmittal.com