The do/while
loop is a variant of the while
loop. This loop will execute the code block once, before checking if the condition is true, then it will repeat the loop as long as the condition is true.
Syntax
do {
// code block to be executed
}
while [condition];
The example below uses a do/while
loop. The loop will always be executed at least once, even if the condition is false, because the code block is executed before the condition is tested:
The do...while
statement creates a loop that executes a specified statement until the test condition evaluates to false. The condition is evaluated after executing the statement, resulting in the specified statement executing at least once.
do
statement
while [condition]
statement
A statement that is executed at least once and is re-executed each time the condition evaluates to true. To execute multiple statements within the loop, use a block statement [{ /* ... */ }
] to group those statements.
condition
An expression evaluated after each pass through the loop. If condition
evaluates to true, the statement
is re-executed. When condition
evaluates to false, control passes to the statement following the do...while
.
Note: Use the
let result = "";
let i = 0;
do {
i += 1;
result += `${i} `;
} while [i > 0 && i 0 && i 0 && i