AmitDiwan has Published 10740 Articles

Find unique and biggest string values from an array in JavaScript

AmitDiwan

AmitDiwan

Updated on 28-Aug-2020 13:56:28

256 Views

Let’s say, we have an array of objects like this −Exampleconst arr = [    {text:'use'},    {text: 'secur'},    {text: 'form'},    {text: 'user'},    {text: 'users'},    {text: 'form'},    {text: 'secur'},    {text: 'sec'},    {text: 'users'},    {text: 'secu'},    {text: 'secur'},    {text: 'for'},   ... Read More

Get n numbers from array starting from given point JavaScript

AmitDiwan

AmitDiwan

Updated on 28-Aug-2020 13:54:33

299 Views

We have to write an array function (Array.prototype.get()) that takes in three arguments first, a number n, second is also a number, say m, (m this.length-1){       return false;    };    const res = [];    for(let i = ind, j = 0; j < num; ... Read More

How to force JavaScript to do math instead of putting two strings together?

AmitDiwan

AmitDiwan

Updated on 28-Aug-2020 13:52:13

451 Views

Let’s say, we have an array of strings, basically it is an array of number strings like this −const arr = ['3', '3', '55', '23', '67', '43', '12', '67', '87', '12'];We are required to write a JavaScript function that takes in one such array and returns the sum of all ... Read More

Solve the Sherlock and Array problem in JavaScript

AmitDiwan

AmitDiwan

Updated on 28-Aug-2020 13:51:03

708 Views

Watson gives Sherlock an array A of length N. Then he asks him to determine if there exists an element in the array such that the sum of the elements on its left is equal to the sum of the elements on its right.We have to write this function, it ... Read More

Compare two objects in JavaScript and return a number between 0 and 100 representing the percentage of similarity

AmitDiwan

AmitDiwan

Updated on 28-Aug-2020 13:49:28

593 Views

Let’s say, we have two objects like these −const a = {    Make: "Apple",    Model: "iPad",    hasScreen: "yes",    Review: "Great product!", }; const b = {    Make: "Apple",    Model: "iPad",    waterResistant: false };We are required to write a function that counts the number ... Read More

Get greatest repetitive item in array JavaScript

AmitDiwan

AmitDiwan

Updated on 28-Aug-2020 13:47:41

163 Views

We have an array of Number / String literals that contains some values (some are repetitive as well). Our job is to write a function that returns the element from the array which appears for the greatest number of times in the array.For example − if the input array is ... Read More

Array sum: Comparing recursion vs for loop vs ES6 methods in JavaScript

AmitDiwan

AmitDiwan

Updated on 28-Aug-2020 13:45:18

295 Views

Let’s say, we have an array with a huge number of Number entries and are required to compare the time recursion takes versus the time a simple loop takes versus the time ES6 function takes in summing all the entries of the array i.e. recursion vs for loop vs ES6 ... Read More

Fetch Second minimum element from an array without sorting JavaScript

AmitDiwan

AmitDiwan

Updated on 28-Aug-2020 13:42:17

511 Views

We have an array of Numbers, and we are required to write a function that returns the second smallest value from the array.For example − if the array is −const arr = [67, 87, 56, 8, 56, 78, 54, 67, 98, 56, 54];Then the output should be the following −54because ... Read More

How to get the maximum count of repeated letters in a string? JavaScript

AmitDiwan

AmitDiwan

Updated on 28-Aug-2020 13:39:31

1K+ Views

We have a string that contains some repeated letters like this −const a = "fdsfjngjkdsfhhhhhhhhhhhfsdfsd";Our job is to write a function that returns the count of maximum consecutive same letters in a streak. Like in the above string the letter h appears for 11 times in a row consecutively, so ... Read More

Shift last given number of elements to front of array JavaScript

AmitDiwan

AmitDiwan

Updated on 28-Aug-2020 13:37:36

276 Views

Let’s say, we have to write an Array function, say prependN() that takes in a number n (n len){       return false;    };    const deleted = this.splice(len - num, num);    this.unshift(...deleted);    return true; }; console.log(arr.reshuffle(4)); console.log(arr);OutputThe output in the console will be −true ... Read More

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