It has been always fun and challenging to create a better resume which eventually gets short-listed by good companies. Actually resume is very important and it plays almost 25% of your new career opportunity. There are plenty of sources available online to help us create — but it actually overwhelmed!

So, I wanted to share my experience which could help to write and format a decent resume.

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Key takeaways


#1: Gather your personal details


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Event manager

Write event emitter-base class that allows you to add event listeners

Custom events

Events can be created with the Event constructor as follows:

let event = new Event(type[, options]);





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sum(a, b)/ sum(a)(b)


Once method (implement a function that can be called only once)

Arrays, Objects, and Strings are commonly used types that we iterate using ‘for’. ‘for…in’, ‘for…of’ statements.

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Array iteration

Repeats until a specified condition evaluates to false.

for ([init]; [condition]; [increment])

“All the three blocks in the for loop can be omitted. But should be declared before.”

2. for…of

for (variable of iterable)

“Iterable can be ‘Array, String, array-like objects, TypedArray, Map, Set and user-defined iterables”.

Use the below code to test whether the object is iterable or not:

typeof obj[Symbol.iterator] === 'function'; // 'obj' will be the var

Don’t use loop for arrays. It iterates over both array…


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Recursive function example 1 — factorial

Recursive function example 2 — Fibonacci

Recursive function example 3 — Decimal to binary conversion

Pascal triangle

I liked the below reference to generate the pascal triangle one row at a time using 2 functions:

Strings coding questions and answers

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String Reverse

Reverse Words




Given a sentence, “Hello how are you HELLO”. Find the minimum distance between two words. Given input: hello, you. Output: 1. The input words are case insensitive (levenshteinDistance (s, t))

Array related questions and answers from brute force to better optimal way of achieving Big O

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Find the maximum value of an array

Remove duplicate from an array/ unique array

Get duplicates from an array

Flatten the array

Find the median value of an array

Find two sum of an array twoSum(arr, sum)

Maximum consecutive sum of integers in an array

Union of arrays (merge two arrays without duplicates)

Intersection of arrays/ find common values of arrays (multidimensional)

Given an array of integers, every element appears twice except for one. Find that single one

Given an array of integers, find the largest product yielded from three of the integers

Being told that an unsorted array contains (n — 1) of n consecutive numbers (where the bounds are defined), find the missing number in O(n) time

Given an array of integers, find the largest difference between two elements such that the element of lesser value must come before the greater element

Given an array of integers, return an output array such that output[i] is equal to the product of all the elements in the array other than itself. (Solve this in O(n) without division)

DNF problem (An array just contains 1s, 2s, and 3s. Sort the array)

Sathish Kumar Arumugam

Senior User Interface Engineer at Aruba Networks

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