while Keyword
Syntax
while (condition) statement
condition
An expression evaluated before each pass through the loop. If this condition
evaluates to true, statement is executed. When condition
evaluates to false, execution continues with the statement after the
while loop.
statement
An optional statement that is executed as long as the condition evaluates to true.
To execute multiple statements within the loop, use a block statement
({ /* ... */ }) to group those statements.
Note: Use the break statement to stop a loop before condition evaluates
to true.