Answers for "console in js"

console javascript

console.log(variable)

what is console in javascript

var str = "Howdy GeeksforGeeks"
var geek = {
  book: "harrypotter",
  price: "2000"
};
var geek2 = [10, 20, 30];
console.log(str);
console.dir(str);
console.dir(geek);
console.log("geek (log) = ", geek);
console.dir(geek2);
console.log("geek2 (log) = ", geek2);

// Prints only string as dir() takes 
// only one parameter. 
console.dir("geek2 (dir) = ", geek2);

javascript console

console.log('log-message'); // Outputs a normal information log to the console window
console.warn('warn-message'); // Outputs warning in the console window
console.error('error-message'); // Outputs error in the console window
console.table('table-message'); // Outputs a table of all the object properties

console in js

console.assert()
//Log a message and stack trace to console if the first argument is false.

console.clear()
// Clear the console.

console.count()
// Log the number of times this line has been called with the given label.

console.countReset()
// Resets the value of the counter with the given label.

console.debug()
// Outputs a message to the console with the log level debug.

console.dir()
// Displays an interactive listing of the properties of a specified JavaScript object. This listing lets you use disclosure triangles to examine the contents of child objects.

console.dirxml()
// Displays an XML/HTML Element representation of the specified object if possible or the JavaScript Object view if it is not possible.

console.error()
// Outputs an error message. You may use string substitution and additional arguments with this method.

console.exception() // Non-Standard
// An alias for error().

console.group()
// Creates a new inline group, indenting all following output by another level. To move back out a level, call groupEnd().

console.groupCollapsed()
// Creates a new inline group, indenting all following output by another level. However, unlike group() this starts with the inline group collapsed requiring the use of a disclosure button to expand it. To move back out a level, call groupEnd().

console.groupEnd()
// Exits the current inline group.

console.info()
// Informative logging of information. You may use string substitution and additional arguments with this method.

console.log()
// For general output of logging information. You may use string substitution and additional arguments with this method.

console.profile() // Non-Standard
// Starts the browser's built-in profiler (for example, the Firefox performance tool). You can specify an optional name for the profile.

console.profileEnd() // Non-Standard
// Stops the profiler. You can see the resulting profile in the browser's performance tool (for example, the Firefox performance tool).

console.table()
// Displays tabular data as a table.

console.time()
// Starts a timer with a name specified as an input parameter. Up to 10,000 simultaneous timers can run on a given page.

console.timeEnd()
// Stops the specified timer and logs the elapsed time in milliseconds since it started.

console.timeLog()
// Logs the value of the specified timer to the console.

console.timeStamp() // Non-Standard
// Adds a marker to the browser's Timeline or Waterfall tool.

console.trace()
// Outputs a stack trace.

console.warn()

how to use the javascript console

/*

shortcuts:

command K = clears the console
command shift M = toggle device toolbar
command shift C = select something on the page

you can also log in a variable you may have coded:

x;
[value of x at that moment]

if you're animating something:
noLoop();
[stops the animation]

loop();
[continues the animation]

you can also code somewhat intricate text:

for (var i = 0; i > 10; i++) {
	console.log([variable or anything]);
}
  
some functions are also available to use:

function mousePressed() {
	console.log([anything]);
}

function keyPressed() {
	noLoop(); [or anything else]
}

*/

js console

this is the console