Description

Problems for in-class lab for the “JavaScript Advanced” course @ SoftUni. Submit your solutions in the SoftUni judge system at https://judge.softuni.bg/Contests/1528/Lab-Advanced-Functions.
1. Add
Write a program that keeps a number inside its context and returns new function that adds a given number to the previous one.
Input
Check the examples below to see how your code will be executed
Output
Your function should return the final result .
Examples
Sample Input Output
let add5 = solution(5); console.log(add5(2)); console.log(add5(3)); 7
8
let add7 = solution(7); console.log(add7(2)); console.log(add7(3)); 9
10
2. Currency Format
Write a higher-order function that fixes some of the parameters of another function. Your program will receive a function that takes 4 parameters and returns a formatted string (a monetary value with currency symbol).
Your task is to return another function that only takes one parameter and returns the same formatted string.
You will receive the following function:
currencyFormatter
function currencyFormatter(separator, symbol, symbolFirst, value) { let result = Math.trunc(value) + separator; result += value.toFixed(2).substr(-2,2); if (symbolFirst) return symbol + ‘ ‘ + result; else return result + ‘ ‘ + symbol; }
Set the following parameters to fixed values:
separator: “,” symbol: “$” symbolFirst: true The final parameter value is the one that the returned function will receive.
Input
You will receive a function parameter
Output
You need to return a function that takes one parameter – value
Examples
Sample Input
let dollarFormatter = result(currencyFormatter); console.log(dollarFormatter(5345)); // $ 5345,00 console.log(dollarFormatter(3.1429)); // $ 3,14 console.log(dollarFormatter(2.709)); // $ 2,71
3. Filter Employees
Write a program that filters the employees of your company. You should print the result in a specific format. You will receive 2 parameters (data, criteria). You should parse the input, find all employees that fullfil the citeria and print them.
Input
You will receive a string with all the employees, and a criteria by witch you should sort the employees. If the criteria is “all” print all the employees in the given format.
Output
The output should be the printed on the console.
For more information check the examples.
Examples
Sample Input Output
`[{
“id”: “1”,
“first_name”: “Ardine”,
“last_name”: “Bassam”,
“email”: “abassam0@cnn.com”, “gender”: “Female”
}, {
“id”: “2”,
“first_name”: “Kizzee”,
“last_name”: “Jost”,
“email”: “kjost1@forbes.com”,
“gender”: “Female” 0. Ardine Bassam – abassam0@cnn.com
1. Kizzee Jost – kjost1@forbes.com

},
{
“id”: “3”,
“first_name”: “Evanne”,
“last_name”: “Maldin”,
“email”: “emaldin2@hostgator.com”,
“gender”: “Male”
}]`,
‘gender-Female’
`[{
“id”: “1”,
“first_name”: “Kaylee”,
“last_name”: “Johnson”,
“email”: “k0@cnn.com”,
“gender”: “Female”
}, {
“id”: “2”,
“first_name”: “Kizzee”,
“last_name”: “Johnson”,
“email”: “kjost1@forbes.com”,
“gender”: “Female”
}, {
“id”: “3”,
“first_name”: “Evanne”,
“last_name”: “Maldin”,
“email”: “emaldin2@hostgator.com”,
“gender”: “Male”
}, {
“id”: “4”,
“first_name”: “Evanne”,
“last_name”: “Johnson”,
“email”: “ev2@hostgator.com”,
“gender”: “Male” }]`,
‘last_name-Johnson’
0. Kaylee Johnson – k0@cnn.com
1. Kizzee Johnson – kjost1@forbes.com
2. Evanne Johnson – ev2@hostgator.com
4. Command Processor
Write a program that keeps a string inside its context and can execute different commands that modify or print the string on the console.
append(string) – append the given string at the end of the internal string removeStart(n) – remove the first n characters from the string, n is an integer removeEnd(n) – remove the last n characters from the string, n is an integer print – print the stored string on the console
Input
Check the examples below to see how your code will be executed
Output
Whenever you receive the command print, the output should be the printed on the console.
Examples
Sample Input Output
let firstZeroTest = solution();

firstZeroTest.append(‘hello’); firstZeroTest.append(‘again’); firstZeroTest.removeStart(3); firstZeroTest.removeEnd(4); loa
let secondZeroTest = solution();

secondZeroTest.append(‘123′); secondZeroTest.append(’45’); secondZeroTest.removeStart(2); secondZeroTest.removeEnd(1); secondZeroTest.print(); 34