Week 1
The following array contains multiple data types. Normalize them by converting them all to numbers using a function and log the result in the console
|
Given Example |
My Solution |
|---|---|
const data = [
1,
2,
"3",
"4",
5
]
function convertArrayStringsToNumbers() {
/* Your code here should convert the data array to
an array containing only numbers and no strings
and log the code to the console. */
}
convertArrayStringsToNumbers(); |
const data = [
1,
2,
"3",
"4",
5
]
function convertArrayStringsToNumbers() {
/* convert the array into only numbers */
let newArray = data.map(Number);
/* log the array */
console.log(newArray);
}
convertArrayStringsToNumbers(); |
The following array contains strings with randomized capitals. You're tasked with converting all strings to lowercase with a first letter capitalized
|
Given Example |
My Solution |
|---|---|
const data = [
"robert",
"vincent",
"lAuRa",
"Cas",
"wIMER",
"rOOs"
];
/* This should the result be:
const data = [
"Robert",
"Vincent",
"Laura",
"Cas",
"Wimer",
"Roos"
];
*/
function convertArrayStringsToCapitalized() {
/* Write your functionality here and log the result */
}
convertArrayStringsToCapitalized(); |
const data = [
"robert",
"vincent",
"lAuRa",
"Cas",
"wIMER",
"rOOs"
];
function convertArrayStringsToCapitalized() {
/* Make a new array and convert first item into a upper case then the other characters should get a lower case */
const newArray = data.map(string => string.charAt(0).toUpperCase() + string.slice(1).toLowerCase());
console.log(newArray);
}
convertArrayStringsToCapitalized(); |
This array of objects contains some weird data, and some useless points, You're tasked in transforming and normalizing this data to the second example
|
Given Example |
My Solution |
|---|---|
const data = [
{
name: "robert",
age: "29",
residence: "amsterdam",
work: {
title: "Lecturer",
employer: "Hogeschool van Amsterdam"
}
},
{
name: "berend",
age: "32",
residence: "rotterdam",
work: {
title: "Front-end Developer",
employer: "DEPT"
}
},
{
name: "ubaida",
age: "26",
residence: "Amersfoort",
work: {
title: "Project Manager",
employer: "Clarify"
}
}
];
/* Filter by age, normalize capitals in names, convert ages to
numbers, remove work.
const data = [
{
name: "Robert",
age: 29,
residence: "Amsterdam",
},
{
name: "Berend",
age: 32,
residence: "Rotterdam",
}
];
*/
function transformArrOfObj() {
/* Write your functionality here and log the result */
} |
const data = [
{
name: "robert",
age: "29",
residence: "amsterdam",
work: {
title: "Lecturer",
employer: "Hogeschool van Amsterdam"
}
},
{
name: "berend",
age: "32",
residence: "rotterdam",
work: {
title: "Front-end Developer",
employer: "DEPT"
}
},
{
name: "ubaida",
age: "26",
residence: "Amersfoort",
work: {
title: "Project Manager",
employer: "Clarify"
}
}
];
function transformArrOfObj(data) {
return data
/* when age is not a number you can filter out that whole object
.filter(item => !isNaN(Number(item.age)))
*/
.map(obj => ({
name: obj.name.charAt(0).toUpperCase() + obj.name.slice(1).toLowerCase(),
age: Number(obj.age),
residence: obj.residence
}));
}
console.log(transformArrOfObj(data)); |