Is alert the same as console log in JavaScript?
alert() stops all interaction with the browser until the message is dismissed while console. log() just prints the message to the console. Ex. You’re printing the values of a bunch of variables to make sure they’re right and don’t want to dismiss the alert window after each variable.
What is the difference between alert and return in JavaScript?
Return is used to return a value from a function. Prompt is used in the browser to get a yes or a no. Alert is a blocking dialog to show the user a message, after which without clicking ok, he can’t do anything else.
What are command alert () and console log () use for what is the different between these commands?
alert() converts the object passed to it into a string using the object’s toString() method. Unlike alert(), console. log() is not only limited to displaying a simple string but also allow you to interact with the object passed to it. For example letting you inspect its properties.
What is native object in JavaScript?
JavaScript has several built-in or native objects. These objects are accessible anywhere in your program and will work the same way in any browser running in any operating system.
How do you use log in JavaScript?
To calculate the ln of a given number, use the Math. log() method in JavaScript. This method returns the natural logarithm (base E) of a number. If the value of a number is negative, the return value is always NaN.
How many buttons are there in a JavaScript alert box?
An alert box is used to inform/alert the user about an event. This type of popup box has only one button, named ‘OK’, and has no return value. Alert Box can be called using the function alert(“message”).
What is a command in JavaScript?
JavaScript code gives instructions to the web browser. JavaScript commands are usually called JavaScript code. Each command should end with a semicolon. It helps your code be more readable to you and the browser, too.
What is an alert in JavaScript?
It consists of the information that we want to show to the users. Let’s see some examples of the JavaScript alert () method. In this example, there is a simple alert dialog box with a message and an OK button. Here, there is an HTML button which is used for displaying the alert box.
What are the different ways to log messages in JavaScript?
As with many other programming languages, JavaScript has support for logging messages at various levels. They are as follows, with their associated method and a description of their output in the console: Plaintext— console.log () outputs unstyled text.
How to display a virtual alert box in JavaScript?
The alert () method in JavaScript is used to display a virtual alert box. It is mostly used to give a warning message to the users. It displays an alert dialog box that consists of some specified message (which is optional) and an OK button. When the dialog box pops up, we have to click “OK” to proceed.
How to use the alert dialog box?
Rather than showing the warnings or errors, the alert dialog box can be used for normal messages such as ‘ welcome back’, ‘Hello XYZ’, etc. message: It is an optional string that specifies the text to display in the alert box. It consists of the information that we want to show to the users.