web api static method

console: count() static method

Available in workers

The console.count() static method logs the number of times that this particular call to count() has been called.

Syntax

console.count()
console.count(label)

label Optional
- : A string. If supplied, count() outputs the number of times it has been called with that label. If omitted, count() behaves as though it was called with the “default” label.

For example, given code like this:

function greet(user) {
  console.count();
  return `hi ${user}`;
}

greet("bob");
greet("alice");
greet();
console.count();

Console output will look something like this:

"default: 1"
"default: 2"
"default: 3"
"default: 4"

The label is displayed as default because no explicit label was supplied.

If we pass the user variable as the label argument to the first invocation of console.count(), and the string “alice” to the second:

function greet(user) {
  console.count(user);
  return `hi ${user}`;
}

greet("bob");
greet("alice");
greet("alice");
console.count("alice");

We will see output like this:

"bob: 1"
"alice: 1"
"alice: 2"
"alice: 3"

We’re now maintaining separate counts based only on the value of label.

SpecificationsStandards references are available on the canonical MDN page.

Browser compatibilityCompatibility data is available on the canonical MDN page.