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Articles by Shubham Vora
Page 7 of 80
How can I remove the decimal part of JavaScript number?
In this tutorial, we will learn to remove the decimal part of the number in JavaScript. While working with JavaScript, many times, developers need to play with the numbers stored in the database and needs to convert float and double numbers into the pure decimal or integer number.In this situation, developers can have multiple methods to truncate the decimal part of the number. We will see different approaches to overcome the above problem.Using the Math.trunc() methodUsing the Bitwise operatorsUsing the Math.ceil() and Math.floor() methodUsing the Math.Trunc() methodThe Math.trunc() is the most popular method to remove the decimal part of JavaScript. ...
Read MoreHow to pad a number with leading zeros in JavaScript?
In this tutorial, we will learn how to pad a number with leading zeros in JavaScript. Padding a number can be done in different ways in JavaScript. In this tutorial, we will see the two most popular ways of doing it − Using the String padStart() method Using the Array object constructor and join() method Using the String padStart() Method In JavaScript, the String object’s padStart() method is useful to pad a number with leading zeros. It takes two parameters, the first one is the total length of the targeted or desired string, and the other one is ...
Read MoreHow to stop refreshing the page on submit in JavaScript?
In this tutorial, we shall learn to stop form refreshing the page on submitting in JavaScript. Let’s cover the methods to accomplish this objective. Using event.preventDefault() to stop page refresh on form submit In this section, we will see how to use event.preventDefault() to stop page refresh on form submission. The event.preventDefault() restricts the default page refresh behavior of the form during form submission. Users can follow the syntax below to try this method. Syntax The syntax defines the form. //Get form element var form=document.getElementById("formId"); function submitForm(event){ ...
Read MoreMaximum number of Strings with Common Prefix of length K
In this problem, we need to count the maximum string having common prefix of length K. We can take prefix of length K from all strings and count maximum number of similar prefix using the map data structure. Also, we can use the Trie data structure to solve the problem. Problem statement - We have given an strs[] array containing multiple strings. We need to count the maximum number of strings containing a common prefix of length K. Sample Example Input strs = {"tutorialspoint", "tut", "abcd", "tumn", "tutorial", "PQR", "ttus", "tuto"}; K = 3; Output ...
Read MoreMaximize value of Palindrome by rearranging characters of a Substring
In this problem, we need to find the maximum palindromic string by rearranging the characters of any substring of the given string. We will use bitmasking to solve the largest palindromic substring. If any substring has bitmasking 0, it contains all characters even a number of times. So, we can generate a palindromic string using the characters of that substring, and we need to find the maximum palindromic string among them. Problem statement - We have given a string containing the N numeric characters. We need to find the maximum palindromic string by rearranging the characters of any ...
Read MoreHow to validate ISIN using Regular Expressions?
In this problem, we will use the regular expression to validate the ISIN number in C++. The ISIN stands for the International Securities Identification Number. It is a unique code to identify stocks, financial bonds, etc. The length of the ISIN number can be 12 or 14, which provides international recognization of the particular stuff. Let’s understand the format of the ISIN number. Country code − It starts with two characters of the country code. Identifier − It contains 9 alphanumeric characters after the country code. Checksum − It contains the single digit which is used to detect errors ...
Read MoreFind the final String by incrementing prefixes of given length
In this problem, we need to increase each character of multiple prefixes of size given in the array. The naïve approach to solving the problem is to take each prefix of the size given in the array and increment each character of the prefix by 1. The best approach is to create the prefix array using the given array and update each string character in the single iteration. Problem statement − We have given a string alpha of length N. Also, we have given a prefixes array containing the positive integer. The prefixes[i] represent that take prefix of length prefixes[i] ...
Read MoreSubstring with maximum ASCII sum when some ASCII values are redefined
In this problem, we will find the substring of the given string whose character's ASCII value's sum is maximum when we redefine the ASCII values. The naïve approach to solve the problem is to find the sum of all substring's character's ASCII value and get the substring having maximum sum. Another approach to solving the problem is using Kadane's algorithm to find the maximum sub-array sum. Problem statement - We have given a string alpha of size N containing the alphabetical characters. We have also given the chars[], and ASCII[] array of size M, where chars[] contains ...
Read MorePython Program for Convert characters of a string to opposite case
In this problem, we will toggle the case of each string character. The easiest way to toggle the case of each string character is using the swapcase() built-in method. Also, we can use the ASCII values of the characters to swap their case. Python also contains isUpper() and isLower() methods to check the character's case and the lower() and upper() method to change the case. Here, we will learn different approaches to solving the problem. Problem statement - We have given a string alpha. We need to toggle the case of string characters. It means converting uppercase ...
Read MoreMinimize Suffix flip to make Binary String non decreasing
In this problem, we will count the number of minimum operations required to convert string non-decreasing order by flipping the characters of the binary string. We can flip all characters of the substring starting from the \mathrm{p^{th}} index if the character at the pth index is 0 and not matching with character at the previous index, and we can count the minimum flips. Problem statement - We have given a binary string alpha. We need to count the minimum flips required to convert the binary string in increasing order. In one flip, we can select any index p ...
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