What is difference between console log and alert?

} if you see in my 3 statement i.e alert(“Let’s go down the first road!”); we are using ‘alert’ here to write a statement. But, when it comes to the 6th statement we are instructed to use ‘console. log’. We use ‘console.

What is a console log?

The console. log() is a function that writes a message to log on the debugging console, such as Webkit or Firebug. In a browser you will not see anything on the screen. It logs a message to a debugging console. It is only available in Firefox with Firebug and in Webkit based browsers (Chrome and Safari).

What is the difference between alert and return?

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.

Why you should not use console log?

Too Much Information. Algorithms are usually designed to automate a large number of small tasks — loops and recursion being fundamental building blocks for this. Along with console. log() , it results in a large number of lines displayed in front of you, so you may have a hard time coming to find the right information.

How do I use console log?

You should use the console. log() method to print to console JavaScript. The JavaScript console log function is mainly used for code debugging as it makes the JavaScript print the output to the console. To open the browser console, right-click on the page and select Inspect, and then click Console.

Where is the console log?

View and save your browser console logs

1. Open the main Chrome menu.
2. Select More Tools > Developer Tools.
3. Depending on which logs you need, you’ll select the Network or Console Tab to get the logs you need.

What is the difference between alert and prompt?

An alert is a popup that has a notice within it. A prompt has an input field and expects the user to interact with it by entering some data.

Why would we use console log () in a project?

The console. log() is a function in JavaScript which is used to print any kind of variables defined before in it or to just print any message that needs to be displayed to the user.

Should I remove all console log?

You should not! It is not a good practice to overwrite built-in functions. There is also no guarantee that you will suppress all output, other libraries you use may revert your changes and there are other functions that may write to the console; .

Where does console log write to?

The console. log() method writes a message to the console. The console is useful for testing purposes. Tip: When testing this method, be sure to have the console view visible (press F12 to view the console).

What is the difference between alert() and console log() in PowerShell?

As console.log () doesn’t stop the script from running, the returned value is stored in the console for viewing. Another advantage of using console.log () over alert () is that you can capture more than just string values. By passing an object to the console log, you can expand this and view all properties of the object.

What are the benefits of using console logs?

I guess its somewhat a matter of taste, but there are a number of benefits of using console.log: Say you want to log 20 different things, that would be quite annoying with alert. You can log objects for instance, and then inspect them. In Chrome Dev tools for instance, you can preserve the log between different pages.

What happens when alert() is removed from a script?

When the alert () is removed, the script following after the AJAX request would happen in milliseconds, whereas the AJAX response would take a second or so to return. As console.log () doesn’t stop the script from running, the returned value is stored in the console for viewing.