console

For printing to stdout and stderr. Similar to the console object functions provided by most web browsers, here the output is sent to stdout or stderr.

Table of Contents #

console.log() #

Prints to stdout with newline. This function can take multiple arguments in a printf()-like way. Example:

console.log('count: %d', count);

If formating elements are not found in the first string then util.inspect is used on each argument. See util.format() for more infomation.

console.info() #

Same as console.log.

console.warn() #

console.error() #

Same as console.log but prints to stderr.

console.dir(obj) #

Uses util.inspect on obj and prints resulting string to stderr.

console.time(label) #

Mark a time.

console.timeEnd(label) #

Finish timer, record output. Example

console.time('100-elements');
for (var i = 0; i < 100; i++) {
  ;
}
console.timeEnd('100-elements');

console.trace() #

Print a stack trace to stderr of the current position.

console.assert() #

Same as assert.ok().

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