WM4 - Robert_Csonka - JavaScript_core1 - week_1 - #340
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| let number | ||
| console.log('number') | ||
| console.log(3434) | ||
| console.log("The third line will be an error") |
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Just a minor correction: The third line would be undefined but not an error. It is a valid JavaScript to declare a variable and later assign a value to it like:
let number;
number = 33;
Also if you were trying to console log the third line in line number 4, you don't need to wrap it in a quotation as it is a variable. You can simply do console.log(number) which will print undefined in the console but console.log('number') gives you number as a string value.
| var greeting = "Hello World!" | ||
| console.log(greeting); | ||
| console.log(greeting); | ||
| console.log(greeting); |
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The above lines work well.
You could also combine multiple console logs like this:
console.log(greeting, greeting, greeting)
| var message | ||
| var name = "Robert" | ||
| var nameLength = name.length | ||
| message = "My name is " + name + " and my name is " + nameLength + " characters long" |
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Nice and neat string concatenation!
| function convertToUSD(poundToUsd) { | ||
| return poundToUsd * 1.4; | ||
| } | ||
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Well done on solving an extra assignment!!
The parameter poundToUsd sounds as if it's a function.
For further improvement, you may want to change it into pound, amountInPound, or something more semantic.
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| function getTotal(a, b) { | ||
| total = a ++ b; | ||
| total = a + b; |
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The variable total hasn't been declared and it will give you a reference error.
You need something like:
let total = a + b;
| function multiply(a, b, c) { | ||
| return a * b * c; | ||
| } | ||
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You've spotted all the errors!
Great job!
| return firstWord.concat(" ", secondWord, " ", thirdWord); | ||
| } | ||
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| /* |
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Well done!
Great comments and sound solutions!
| function addTaxAndFormatCurrency(price) { | ||
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| return "£" + calculateSalesTax(price).toFixed(2); | ||
| } |
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