console: group() method

label Optional

Label for the group.

None (undefined).

You can use nested groups to help organize your output by visually associating related messages. To create a new nested block, call console.group(). The console.groupCollapsed() method is similar, but the new block is collapsed and requires clicking a disclosure button to read it.

To exit the current group, call console.groupEnd(). For example, given this code:

console.log("This is the outer level");
console.group();
console.log("Level 2");
console.group();
console.log("Level 3");
console.warn("More of level 3");
console.groupEnd();
console.log("Back to level 2");
console.groupEnd();
console.log("Back to the outer level");

The output looks like this:

See Using groups in the console in the documentation of console for more details.

• console.groupEnd()