Manchester | 25-ITP-May | Fithi Teklom| Sprint 1 | Coursework Sprint 1 #771
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| // Try logging the value of num and running the program several times to build an idea of what the program is doing | ||
| console.log(num); | ||
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| // num is a random integer between minimum and maximum, including both endpoints. |
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What is the difference between an integer and decimal number?
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Integer is a whole number(no fraction and no decimal). But Decimal number is a number with a ( . ), that can be fractional or decimal.
| // Read the code and then answer the questions below | ||
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| // a) How many function calls are there in this file? Write down all the lines where a function call is made | ||
| // There are 5 function calls. Number(), carPrice.replaceAll(),priceAfterOneYear.replaceAll(), console.log(),percentageChange(), |
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Is percentageChange() a function here?
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No, but there are 2 Number functions. I have updated it in the exercise.
| //const percentageChange = (priceDifference / carPrice) * 100; | ||
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| // e) Describe what the expression Number(carPrice.replaceAll(",","")) is doing - what is the purpose of this expression? | ||
| // It replaces the number to a clean string. |
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Could you explain a bit more what you mean here?
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I meant a string without unnecessary spaces, comma or underscore. Just the string as it is.
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| // c) Using documentation, explain what the expression movieLength % 60 represents | ||
| // https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Arithmetic_Operators | ||
| //Remainder assignment. Which means when 8784 seconds is divided by 60 it gives 24. |
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Could you clarify this?
8784 divided by 60 gives 146.4
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I meant it gives a remainder value which is 24. So when 8784 is divided by 60 it gives 146 and a remainder of 24.
| //Dividing that by 60 converts the remaining seconds into whole minutes. | ||
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| // e) What do you think the variable result represents? Can you think of a better name for this variable? | ||
| //It represents movie duration. A better name can be formattedMovie. |
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Is there another variable name you could use here that gives even more context?
| //It represents movie duration. A better name can be formattedMovie. | ||
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| // f) Try experimenting with different values of movieLength. Will this code work for all values of movieLength? Explain your answer | ||
| // Mostly yes, but not good for fractional values, negative numbers and numbers less than 0, the leading 0 may not be displayed. |
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These are really good edge cases!
CameronDowner
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I've just noticed you're missing exercise 3, could you also include this 🙂 |
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