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We can use the Selenium webdriver scripts in Firefox (versions>47) with the help of the geckodriver.exe executable file. First, we have to download this file from the following link −https://github.com/mozilla/geckodriver/releasesOnce we navigate to the mentioned URL, we have to click a link based on the operating system (Windows, Linux or Mac) we are presently using. As the download gets over, a zip file is created. We have to extract the zip file and store the geckodriver.exe file in a desired location.Then, we have to configure the path of the geckodriver.exe file using the System.setProperty method along with creating an object ... Read More
We can select data from a datepicker using Selenium webdriver. A datepicker in a calendar can be designed in numerous ways on the web UI. Based on the UI, we have to design our test.A calendar may have a dropdown for selection of day, month or year. It may also contain forward and backward navigation to move up and down in the dates or any other design. The below example shows a calendar having a datepicker. Let us make an attempt to select the date 03/02/2021(2nd March, 2021) date from the below calendar −In the above html code, we can ... Read More
We can use the JavaScript Executor in Selenium to click an element.Selenium can execute JavaScript commands with the help of the method executeScript.Sometimes while clicking a link, we get the IllegalStateException, to avoid this exception, the JavaScript executor is used instead of the method click. The parameters to be passed to the executeScript method to click an element are - arguments[0].click(); and the web element locator.SyntaxWebElement m=driver.findElement(By.linkText("Company")); JavascriptExecutor js = (JavascriptExecutor) driver; js.executeScript("arguments[0].click();", m);Let us click the link Company on the below page −Exampleimport org.openqa.selenium.By; import org.openqa.selenium.WebDriver; import org.openqa.selenium.WebElement; import org.openqa.selenium.chrome.ChromeDriver; import java.util.concurrent.TimeUnit; import org.openqa.selenium.JavascriptExecutor; public class ClickLnkJS{ public ... Read More
Declaring an ArrayIn order to declare an array, you follow the syntax give below −Syntaxtype array_name[array_size];Exampleschar buf[500]; int new_array[200];Accessing elements of the arrayThe array element numbering starts from 0. The element can be accessed by specifying the index of the element in square brackets against the name of the array. For instance −int second_element = new_array[1];Getting length of arrayThe length of the array can be accessed using the sizeof() function.For example, int buf_len = sizeof(buf);Please note that the sizeof() function returns the number of bytes, and not the number of elements. If you have an int array, and int is ... Read More
The mixed type in PHP 8 is a new built-in union type. Mixed type is equivalent to array|bool|callable|int|float. Mixing the type is not quite similar to omitting the type completely.That means, the programmer just forgot to write it.Sometimes the programmer prefers to omit some specific type to keep the compatibility with an older version.Mixed type in PHP 8 can take any type of property/return/parameter. We can say that it includes null, callable, resource, all class objects, or all scalar types in PHP. The mixed type is equivalent to the Union type.int|float|bool|string|null|array|object|callable|resourceExample: Mixed Type in PHP 8In PHP 8, Mixed is ... Read More
In PHP 8, Constructor Property Promotion is added. It helps to reduce a lot of boilerplate code while constructing simple objects. This feature allows us to combine class fields, constructor definition, and variable assignments, all in one syntax, into the constructor parameter list.We can say that instead of specifying class properties and a constructor, we can combine all of them using constructor property promotion.Example 1: PHP 7 CodeExample 2: PHP 8 codeWe can re-write the above PHP 7 code in PHP 8 as follows −Output10.9 20 30.8In the above code, we combined property definition and population inline in the constructor ... Read More
In PHP 8, a new Stringable Interface (__toSting) is added. This method starts with the double underscore (__). The __toString method allows getting an object represented as a string. When a class defines a method using __toString, then it will call an object whenever it needs to treat as a string.Example: Stringable Interface using __toString Live DemoOutputEmployee NameIn PHP 8, the Stringable interface makes it easy to pass strings. A Stringable interface adds automatically once a class implements the __toString method. It does not require implementing the interface explicitly. The Stringable interface can be helpful for type hinting whenever strict types ... Read More
In the earlier versions of PHP, if we wanted to get the type of a variable, we used to employ the gettype() function. This function returns the type of a variable in the custom of a string. It returns all possible values like integer, string, array, boolean, double, resource, NULL, unknown type, etc.However, there were issues in the gettype function. It does not return native and familiar type names. It returns double instead of float and integer instead of int, and so on.To overcome this problem, PHP 8 uses the get_debug_type function.get_debug_type() functionIn PHP 8, the get_debug_type function returns the ... Read More
In PHP 8, fdiv() function is used to perform floating-point division on IEEE 754 standard. fdiv() is a mathematical operation that divides two numbers and returns a floating-point number.The fdiv() function works similar to the intdiv() and fmod() function, which allows division by zero. Instead of showing an error, the fdiv() function returns INF, -INF or NAN, when a number is divided by zero.INF (Infinity or real number) – It is the result of a numerical calculation that is mathematically infinite.-INF (Negative Infinite) – it is a negative infinite number or a number below -1.796E308.NAN (Not a Number) – it ... Read More
The resource is a type of variable that holds a reference to an external resource. The resource can be a filehandle, a database connection, or a URL handle. Every resource is identified by a unique id. In the previous versions of PHP, we needed to cast a resource to int to get the resource id.Example: get_recource_id using int.Output1In PHP 8, the get_resource_id() function always returns an int. It is used to get the ID for a given resource. This function always guarantees type safety.Example: Using get_recource_id in PHP 8.Output1