London | 25-ITP-Sep | Payman Issa Baiglu | Sprint 2 | Coursework/sprint 2 #838
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… correct convertToPercentage function implementation
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Hi @PaymanIB! Very good work on these exercises! I left several comments you need to address. You also have some extra file in the commit you pushed, can you please remove it?
Sprint-2/1-key-errors/0.js
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| // Predict and explain first... | ||
| // =============> write your prediction here | ||
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| // it gives us an error. |
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You should try to be more specific, what type of error?
| let str1 = `${str[0].toUpperCase()}${str.slice(1)}`; | ||
| return str1; |
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Why do you use let here? Also, can you think of a way to simplify these two lines?
| // Why will an error occur when this program runs? yes | ||
| // =============> write your prediction here | ||
| // decimalNumber is declared before and can not be declared again. | ||
| // console.log(decimalNumber) should be console.log(convertToPercentage) |
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This is correct but why is that a case? Why we can't do console.log(decimalNumber)?
| // Finally, correct the code to fix the problem | ||
| // =============> write your new code here | ||
| function convertToPercentage(decimalNumber) { | ||
| //const decimalNumber = 0.5; |
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Let's keep the code clean and remove all scratch work and commented out code (within functions you wrote).
| const percentage = `${decimalNumber * 100}%`; | ||
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| return percentage; |
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Can you think of a way to simplify this?
| // console.log(`The sum of 10 and 32 is ${sum(10, 32)}`); | ||
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| // =============> write your explanation here | ||
| //the return statement is not returning any value. a+b declared after return. |
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You are right about the return but be careful with second part, a + b is not not a declaration, it's an expression.
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| // Predict the output of the following code: | ||
| // =============> Write your prediction here | ||
| // the result will be 3 times |
| const penceStringWithoutTrailingP = penceString.substring(0 , penceString.length - 1); | ||
| const paddedPenceNumberString = penceStringWithoutTrailingP.padStart(3, "0"); | ||
| const pounds = paddedPenceNumberString.substring(0,paddedPenceNumberString.length - 2); | ||
| const pence = paddedPenceNumberString.substring(paddedPenceNumberString.length - 2).padEnd(2, "0"); | ||
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| return `£${pounds}.${pence}`; |
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Do you have prettier installed? If no, I would recommend installing it and formatting your code. This is not a correct indentation, makes your code look messier
| const totalMinutes = (seconds - remainingSeconds) / 60; //1 | ||
| const remainingMinutes = totalMinutes % 60; //1 |
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Do you need these comments here?
jennethydyrova
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Hi @PaymanIB! Do you want to do another round of review? If yes, please change label to needs review and request review. |
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in this PR: Sprint 2 Coursework completed. errors fixed and questions answered