Top JS console methods to know as a beginner!

Hey guys, this is my first DEV community post. I just wanted to share some important JS console methods which helped be as a beginner in Javascript. Hope you find it helpful!

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The Console API provides several methods to output messages, errors, and other information to the console. Here are some common methods you can use in the console:

console.log()

Outputs a message to the console. You can pass one or more arguments, which will be concatenated with a space in between.

Example:

console.log('Hello, world!');

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console.error()

Outputs an error message to the console. Similar to console.log(), but with a red colour and an "Error" prefix.

Example:

console.error('Something went wrong!');
console.error(new Error('Invalid input'));

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console.warn()

Outputs a warning message to the console. Similar to console.log(), but with a yellow colour and a "Warning" prefix.

Example:

console.warn('Deprecated function used!');
console.warn('Please update your code');

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console.info()

Outputs an informational message to the console. Similar to console.log(), but with a blue colour and an "Info" prefix.

Example:

console.info('Application started');
console.info('Connected to database');

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console.debug()

Outputs a debug message to the console. Similar to console.log(), but with a grey colour and a "Debug" prefix.

Note that this method is only available in some browsers and Node.js environments.

Example:

console.debug('Entering function foo()');
console.debug('Variable x has value:', x);

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console.assert()

Outputs an error message to the console if the first argument is false. Useful for debugging and testing.

Example:

console.assert(typeof x === 'number', 'x must be a number');
console.assert(y > 0, 'y must be positive');

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console.table()

Outputs a table with the provided data. In the below given example it will output the index, name & runs

Example:

const data = [
  { name: 'John', age: 30 },
  { name: 'Jane', age: 25 },
  { name: 'Bob', age: 40 },
];
console.table(data);

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console.clear()

Clears the console.

Example:

console.clear();

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console.count()

Outputs the number of times the console.count() method has been called with the same label.

Example:

console.count('loop iteration');
console.count('loop iteration');
console.count('another label');

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console.group() & console.groupEnd()

The console.group() outputs a group set of console messages together, making it easier to read and debug.
The console.groupEnd() outputs the end of group set of console messages.

Example:

console.group('My group');
console.log('Message 1');
console.log('Message 2');
console.groupEnd();

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console.time() & console.timeEnd()

Measures the time it takes to execute a block of code.

Note that console.timeEnd() is necessary since the measurement will not work without a start timer and a stop timer.

Example:

console.time('myTimer');
// some code here
console.timeEnd('myTimer');

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console.trace()

Outputs a stack trace to the console

Example:

console.trace();

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These are the most commonly used console methods. There are a few more, like console.dir() and console.dirxml(), but they're less frequently used.

Remember, the console is a powerful tool for debugging and testing your code. Use it wisely!

Thank you for your time, hope this was useful!

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