JAVASCRIPT

console message inspector javascript

console.log() 		// outputs a message to the web console
console.assert() 	// writes an error message to the console if the assertion is false. If the assertion is true, nothing happens.
console.table()		// displays tabular data as a table.
console.info()		// outputs an informational message to the Web console.
console.error()		// outputs an error message to the Web console.