| 3. 7. 1. do...while |
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do...while loop always executes the loop once before evaluating the expression for the first time. |
This difference is seen in the following format: |
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do
{
statement;
}
while (expression);
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Once the loop has executed for the first time, the expression is evaluated. |
If true, the loop is executed again. |
When the expression evaluates to false, the next line of code following the while structure is executed. |
A semicolon (;) must be placed after the rightmost parenthesis. |
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<html>
<SCRIPT LANGUAGE='JavaScript'>
<!--
var light = "red";
var counter = 1;
do
{
document.write(counter + "<BR>");
counter++;
}
while (counter < 5);
//-->
</SCRIPT>
</html>
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