This repository contains some samples of using the Console API.
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README.md

README.md

All in one Console API

This repository contains some samples of using the Console API. All the essential methods of Console API are included with a sample in README.md.


What's Console API?

The Console API provides web applications with methods for writing information to the console, creating JavaScript profiles, and initiating a debugging session.


Non-standard

see developer.mozilla.org

This feature is non-standard and is not on a standards track. Do not use it on production sites facing the Web: it will not work for every user. There may also be large incompatibilities between implementations and the behavior may change in the future.".


Methods

console.log(object[, object, ...])

Writes a message to the console. You may pass as many arguments as you'd like, and they will be joined together in a space-delimited line.

console.log('This is a sample log');

console.debug(object[, object, ...])

Writes a message to the console, including a hyperlink to the line where it was called.

console.debug('I am debug message');

console.info(object[, object, ...])

Writes a message to the console with the visual "info" icon and color coding and a hyperlink to the line where it was called.

console.info('I just want to share info!');

console.warn(object[, object, ...])

Writes a message to the console with the visual "warning" icon and color coding and a hyperlink to the line where it was called.

console.warn('Be quite! Big brother is watching you!');

console.error(object[, object, ...])

Writes a message to the console with the visual "error" icon and color coding and a hyperlink to the line where it was called.

console.error('Something goes wrong!');

console.assert(expression[, object, ...])

Tests that an expression is true. If not, it will write a message to the console and throw an exception.

console.assert((2 + 3) === 5); // Assertation true
console.assert((2 * 1 * 0) === 3, 'It should be 0!'); // Assertation faild

console.clear()

Clears the console.

console.clear();

console.dir(object)

Prints an interactive listing of all properties of the object.

console.dir(document.body);

console.dirxml(node)

Prints the XML source tree of an HTML or XML element.

console.dirxml(document.body);

console.trace()

Prints an interactive stack trace of JavaScript execution at the point where it is called.

console.trace();

The stack trace details the functions on the stack, as well as the values that were passed as arguments to each function.

console.group(object[, object, ...])

Writes a message to the console and opens a nested block to indent all future messages sent to the console. Call console.groupEnd() to close the block.

console.group('Group log is started:');

console.groupCollapsed(object[, object, ...])

Like console.group(), but the block is initially collapsed.

console.groupCollapsed('Group log is started (collapsed):');

console.groupEnd()

Closes the most recently opened block created by a call to console.group() or console.groupCollapsed()

console.groupEnd();

console.time(name)

Creates a new timer under the given name. Call console.timeEnd() with the same name to stop the timer and print the time elapsed.

console.time('timer');

console.timeEnd(name)

Stops a timer created by a call to console.time(name) and writes the time elapsed.

console.timeEnd('timer');

console.timeStamp(name)

Creates a time stamp.

console.timeStamp('timeStamp');

console.profile([title])

Turns on the JavaScript profiler.

console.profile('my-profile');

console.profileEnd()

Turns off the JavaScript profiler and prints its report.

console.profileEnd('my-profile');

console.count([title])

Writes the number of times that the line of code where count was called was executed.

console.count('count this line!');

console.table(data[, columns])

Allows to log provided data using tabular layout.

console.table(["apples", "oranges", "bananas"]);

More info