https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference
A block statement (or compound statement in other languages) is used to group zero or more statements. The block is delimited by a pair of curly brackets and may optionally be labelled:
Syntax
[label:] {
statement_1;
statement_2;
...
statement_n;
}
statement_1,statement_2,statement_n- Statements grouped within the block statement.
- label
- An optional
labelfor visual identification or as a target forbreak.
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