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In this article, the given task is to remove the leading zeros in an array in JavaScript. Before we dive into the examples, let’s get an understanding of the problem by looking at the input-output scenarios below. Input-Output Scenario Let’s look into some input-output scenarios - Assume that we are having an array with elements in it. In which the starting elements in the array are zeros and task is to remove the leading arrays. Input = [0, 0, 0, 5, 67, 12, 4, 0, 5]; Output = [5, 67, 12, 4, 0, 5] Now, consider another scenario ... Read More
Given there is a number with digits after decimal point and the task is to find the count of digits after the decimal point. Input Output Scenario Let’s look into the input output scenario, where there is a floating point number having some digits after decimal point. Input = 45.36346323 Output = 8 As we can in the above snippet there are 8 digits in the floating point number after the decimal point. To achieve the above task, we used three methods. Namely isInteger(), toString() and, split() method. Let’s see them one by one – Number.isInteger()method The ... Read More
Given there is an array with some empty indices and need to remove those empty indices from array. Let’s look into the input output scenarios – Consider there is an array with some empty indices. Now we need to exclude them and return the elements which are having only truthy values. Array = [22, 45, , 56, 71, , 10]; Output = [22, 45, 56, 71, 10] As we can see in the output, the indices which are empty in the array got removed. We can achieve the above task by using several methods, let’s look into the ... Read More
In this article, we are going to learn how to filter an array based on another array in JavaScript. An Array in JavaScript is used to store different elements. These elements are stored at contiguous memory locations. By using index numbers, we can access any or each data element present in the array. Index numbers will start form 0. Syntax Following is the syntax of the array in JavaScript – const array_name = [item1, item2, ...]; The following is the simple declaration of array in JavaScript, Const colors = ['Blue', 'Limegreen', 'Orange', 'Black']; Let’s assume some simple ... Read More
Given a multidimensional array and the task is to pick the largest elements from it in JavaScript. The multidimensional arrays are an arrays inside an array. whenever there are arrays inside the array it will work as multidimensional array. Following is the one-dimensional array - const arr = ["Welcome", "to", "tutorials", "point"]; const arr = [1, 5, 12, 67, 99]; This is how the multidimensional array look like - const array=[["Mike tyson", "Vijay"], ["ananya", "charmee"], ["Lion", "Tiger"]]; This is how we can access the elements from multidimensional array - const array = [["Mike tyson", "Vijay"], ["ananya", ... Read More
In this article, we are going to discuss how to implement quick sort in JavaScript with suitable examples. Quick sort The Quick sort is a divide and conquers algorithm similar to the merge sort. In this, we pick a pivot element and divide the array around the pivot element. There are many ways to pick the pivot element. Always pick the first element as a pivot element. Always pick the last element as a pivot element. (Implemented in the below program) Pick a random element as pivot element Pick the middle element as pivot element. The main process ... Read More
In TypeScript, the type guards are used to determine a variable's type, often inside a conditional or functional block. The type guards usually take the variable and return a Boolean value or the variable type. Type guards allow you to tell the TypeScript compiler to infer a given type for a variable in a specific context, guaranteeing that an argument's type is what you say it is. Like feature detection, type guards are frequently used to limit a type and let you identify the proper prototypes, methods, and attributes of a value. As a result, handling that value became simple ... Read More
The method overriding means writing the new definition of the method in the inherited class by keeping the method name, parameters, and return type the same. In this tutorial, we will learn about the method overriding in TypeScript. Inheritance is one of the four pillars of object-oriented programming. The method overriding feature of the OOPs is helpful with the inheritance. For example, we can define the method in the parent class and redefine the method with the same name, parameter, and return type into the base class with a different code to execute, and that’s how method overriding comes into ... Read More
In TypeScript, the getters and setters are two terms that can be used to get and set the value of the class members, respectively. However, users can access the public members of the class directly via the dot operator by taking the object of the particular class as a reference. To access the class's private members, we just need to use the getter method. In this tutorial, we will learn to use the getters and setters in TypeScript. Using the getters to access the private members of the class As we create a method to access the class's private ... Read More
In TypeScript, a 2D array is an array of arrays, where each inner array represents a row of the 2D array. You can access individual elements of the array using bracket notation, with the row and column indices separated by a comma. A single-dimensional array can store values of any data type, such as string, number, objects, etc. To sort a 2D array in TypeScript, you can use the sort() method along with a custom compare function. The sort() method takes the compare function as an optional argument, and the compare function should take two arguments, a and b, ... Read More