Q1.
Write a JavaScript program to get the first n elements of an array, where n can be any positive number.
// for array [7, 9, 0, -2] and n = 3
// output
[7, 9, 0]Q2.
Write a JavaScript program to get the last n elements of an array, where n can be any positive number.
// for array [7, 9, 0, -2] and n = 3
// output
[9, 0, -2]Q3.
Write a JavaScript program to check whether a string is blank or not.
Q4.
Write a JavaScript program to strip leading and trailing spaces from a string.
Q5.
Write a JavaScript program to check if an element exists in an array or not.
Q6. (Adv.)
Write a JavaScript program to test whether the character from a given word at the given index is in lower case or not.
word - JavaScript
index - 3
// so character at index 3 in JavaScript is a
// which is in lowercase
// output
The character at index 3 in JavaScript is 'a', which is in lowercase.
index - 4
// so character at index 4 in JavaScript is S
// which is not in lowercase
// output
The character at index 4 in JavaScript is 'S', which is not in lowercase.