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lines changed Original file line number Diff line number Diff line change 1+ // The diagram below shows the different names for parts of a file path on a Unix operating system
2+
3+ // ┌─────────────────────┬────────────┐
4+ // │ dir │ base │
5+ // ├──────┬ ├──────┬─────┤
6+ // │ root │ │ name │ ext │
7+ // " / home/user/dir / file .txt "
8+ // └──────┴──────────────┴──────┴─────┘
9+
10+ // (All spaces in the "" line should be ignored. They are purely for formatting.)
11+
12+ const filePath = "/Users/mitch/cyf/Module-JS1/week-1/interpret/file.txt" ;
13+ const lastSlashIndex = filePath . lastIndexOf ( "/" ) ;
14+ const base = filePath . slice ( lastSlashIndex + 1 ) ;
15+ console . log ( `The base part of ${ filePath } is ${ base } ` ) ;
16+
17+ // Create a variable to store the dir part of the filePath variable
18+ // Create a variable to store the ext part of the variable
19+
20+ const dir = ;
21+ const ext = ;
22+
23+ // https://www.google.com/search?q=slice+mdn
Original file line number Diff line number Diff line change 1+ This is just an instruction for the first activity - but it is just for human consumption
2+ We don 't want the computer to run these 2 lines - how can we solve this problem?
Original file line number Diff line number Diff line change 1+ const 12 HourClockTime = "20:53" ;
2+ const 24 hourClockTime = "08:53" ;
Original file line number Diff line number Diff line change 1+ let carPrice = "10,000" ;
2+ let priceAfterOneYear = "8,543" ;
3+
4+ carPrice = Number ( carPrice . replaceAll ( "," , "" ) ) ;
5+ priceAfterOneYear = Number ( priceAfterOneYear . replaceAll ( "," "" ) ) ;
6+
7+ const priceDifference = carPrice - priceAfterOneYear ;
8+ const percentageChange = ( priceDifference / carPrice ) * 100 ;
9+
10+ console . log ( `The percentage change is ${ percentageChange } ` ) ;
11+
12+ // Read the code and then answer the questions below
13+
14+ // a) How many function calls are there in this file? Write down all the lines where a function call is made
15+
16+ // b) Run the code and identify the line where the error is coming from - why is this error occurring? How can you fix this problem?
17+
18+ // c) Identify all the lines that are variable reassignment statements
19+
20+ // d) Identify all the lines that are variable declarations
21+
22+ // e) Describe what the expression Number(carPrice.replaceAll(",","")) is doing - what is the purpose of this expression?
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