Podcast
Questions and Answers
Which of the following components is not necessary for implementing counter-controlled repetition?
Which of the following components is not necessary for implementing counter-controlled repetition?
What data type is recommended to use for the counter in counter-controlled repetition?
What data type is recommended to use for the counter in counter-controlled repetition?
If the following script is executed, what would be displayed by the browser? for (var i = 0; i < 5; i++) { console.log(x); }
If the following script is executed, what would be displayed by the browser? for (var i = 0; i < 5; i++) { console.log(x); }
What would the browser display if the following code were executed? for (var j = 1; j <= 4; j++) { console.log('O'); }
What would the browser display if the following code were executed? for (var j = 1; j <= 4; j++) { console.log('O'); }
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Which of the following for loop declarations is correctly structured and will not result in an error, assuming x = 2 and y = 30?
Which of the following for loop declarations is correctly structured and will not result in an error, assuming x = 2 and y = 30?
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Study Notes
Counter-Controlled Repetition
- Counter-controlled repetition requires an initial value, final value, and increment.
- A sentinel is not a requirement.
- Use an integer as a counter.
for Repetition Statement
- The example script in 8.3 would produce an error.
- The example script in 8.4 would produce 'ooooo'.
- The
forloop in 8.5 declarationfor ( var j = 10; j < x; j++)is incorrect and would lead to an error; as the conditionj < xis incorrect for x = 2.
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Description
This quiz focuses on counter-controlled repetition and the use of the for repetition statement in computer programming. It covers key concepts such as the initial value, final value, and increments, while also addressing common errors made in loop declarations. Test your understanding of these fundamental programming principles.
