Resets the counter. This function takes an optional argument label
.
If label
is supplied, this function resets the count associated with that particular label.
If label
is omitted, the function resets the default counter.
console.countReset([label]);
label
countReset()
resets the count for that label to 0.count()
resets the default counter to 0.If a label parameter was supplied:
If no label was supplied:
If label
is supplied and does not exist,
If label
is not supplied and count()
has not been callsed, countReset
returns the warning:
For example, given code like this:
var user = ""; function greet() { console.count(); return "hi " + user; } user = "bob"; greet(); user = "alice"; greet(); greet(); console.count(); console.countReset();
Console output will look something like this:
"default: 1" "default: 2" "default: 3" "default: 1" "default: 0"
Note that the call to console.counterReset() resets the value of the default counter to zero.
If we pass the user
variable as the label
argument to the first invocation of count()
, and the string "alice" to the second:
var user = ""; function greet() { console.count(user); return "hi " + user; } user = "bob"; greet(); user = "alice"; greet(); greet(); console.countReset("bob"); console.count("alice");
We will see output like this:
"bob: 1" "alice: 1" "alice: 2" "bob: 0" "alice: 3"
Resetting the value of the counter "bob" only changes the value of that counter. The value of "alice" is unchanged.
Specification | Status | Comment |
---|---|---|
Console API The definition of 'console.countReset()' in that specification. | Living Standard | Initial definition |
Desktop | ||||||
---|---|---|---|---|---|---|
Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | |
Basic support | Yes | ? | 62 | No | Yes | ? |
Mobile | |||||||
---|---|---|---|---|---|---|---|
Android webview | Chrome for Android | Edge Mobile | Firefox for Android | Opera for Android | iOS Safari | Samsung Internet | |
Basic support | Yes | Yes | ? | 62 | ? | ? | Yes |
© 2005–2018 Mozilla Developer Network and individual contributors.
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/console/countReset