What does console log mean in JavaScript?

What does console mean in JavaScript?

In javascript, the console is an object which provides access to the browser debugging console. We can open a console in web browser by using: Ctrl + Shift + K for windows and Command + Option + K for Mac. The console object provides us with several different methods, like : log()

What is the use of 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.

Should I remove console log?

Generally yes, its not a great idea to expose log messages in your production code. Ideally, you should remove such log messages with a build script before deployment; but many (most) people do not use a build process (including me).

What is console log in coding?

console. log() is used as a debugging tool to help you understand what your code is doing. By displaying a message containing either descriptive text that tells you what is happening or the value of particular variables, you can follow along as your code executes. The user of your app will not see the console.

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What is a console method?

A Console method is an object used to access browsers debugging console. With the help of console methods, we can print messages, warning, and errors to browser console, which is helpful for debugging purpose. … The console object provides multiple methods to use.

Is console log an API?

The Console API’s most commonly used method is undoubtedly console. log . However, it also comes with several other useful methods that can improve our debugging efficiency. Note: All methods are available in NodeJS as of version 10.0.

What is the difference between return and console log?

return is a statement that allows a function to output a value back to where it was called. console. log is a function that lets us inspect values for debugging purposes.

How do I find 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.

Is console log the same as print?

yes, console. log is for just outputting text. But if you type a variable, you get the inspector of such object,. So yes, there is a difference.

Why you should not use console log?

Untrustworthy Information

You cannot always trust information reported by console. log() because there is simply no standardized behavior about it. … As a workaround, you’ll need to either clone the information or serialize snapshots of it.

Is it bad to have console log in production?

If you are going to include direct calls to console. log() in your application, use it sparingly and make the messages short and useful. Output of more than 140 characters dilutes the signal-to-noise ratio, which makes actual debugging calls to console. log() impractical.

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How do I get rid of console log?

HOW TO DEACTIVATE console. log(…) IN PRODUCTION

  1. variable env retrieves and store the ENVIRONMENT (local/staging/production) you might have saved with PHP.
  2. Then a check is put in place through a conditional statement to check if your app is on the production server (as set by you),

What does a console do in coding?

A console traditionally refers to a computer terminal where a user may input commands and view output such as the results of inputted commands or status messages from the computer. The console is often connected to a remote computer or computer system that is controlled from the console.

Can you console log a function?

1 Answer. If it’s a user defined function you can use: console. log(callback.

How do I add a console log in react?

log() in react and react native application inside the render block. Most of the times developer trying to add console. log statement inside the return block of render block, in that case it will not print the statement inside the console rather it will print the results inside the browser screen.

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