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There are various ways to validate the input data in Laravel. One of those is the Validator class. The first step is that you need to include this class as shown below − use Illuminate\Support\Facades\Validator; When you work with an array you need to mention the keys and the rules to be used in the array. For example, consider the following array. Here, we are adding the keys, firstname, lastname, and address along with the values. Using rules we define all these elements are mandatory and of the data type String. $formData = array( 'firstname' => ... Read More
The make:migration Artisan in Laravel (9) enables you to generate a database migration. You can find the resultant migration files are the database/migrations directory. Using this command, we can add a new column to a table (in addition to other operations). Syntax First of all let us first create a table using the make:migration command. Following is the syntax to create a new table in Laravel using this command − php artisan make:migration create_yourtablename_table Here, the table name is your_table_name. So let us create a table with the name: students. The command to create table students is as follows ... Read More
An array in JavaScript is an datatype which contains similar types of data. A number array is defined as the array object with numbers as its content. These numbers are divided into even and odd types on a basic level of mathematics. In this article, we will look into outputting the even number of any number array. Syntax let arr = [val1, val2, val3, …]; Now, let us consider an array arr with numbered elements and print the content in the 0th index − Example let ... Read More
The server IP will be the IP address of the server you are connected to. When you are working with Laravel to get the server IP you can make use of $_SERVER['SERVER_ADDR']. The $_SERVER variable acts as a global variable in PHP. It holds details like header information, script location, and other miscellaneous details. Example 1 The following example retrieves the details of the $_SERVER global variable.
Before we answer the above question, let us first understand what collections are in Laravel. Collection in Laravel is an API wrapper that helps you deal with different operations to be performed on arrays. It makes use of the class Illuminate\Support\Collection to deal with arrays in Laravel. To create a collection from a given array you need to make use of the collect() helper method that returns a collection instance. Later you can use a chain of methods like converting to lowercase and sorting on the collection instance. Example The example in this section demonstrates how to create a collection from ... Read More
In this tutorial, we are going to see how to find the largest number among the given number in Golang. This tutorial will cover two ways to do the same thing. Explanation Suppose we have three numbers 33, 76, and 47 so we can observe that 76 > 33 76 > 47 So our Golang code should print 76 as the largest number. Defining the operation within Same Funtion Algorithm Step 1 − Declaring the variables for the number1, number2, number3, and largest of int32 data type. Step 2 − Taking the input for the number1, number2, and ... Read More
In this tutorial, we are going to understand the approach to finding the quotient and the remainder by performing the arithmetic operations on the dividend and the divisor provided as input by the user. This tutorial will cover two ways to do the same thing. Explanation To divide any number we use the “ / ” arithmetic operator and to find the remainder we use the “ % ” arithmetic operator Suppose we have a dividend 19 and a divisor 4 then the quotient and the remainder are as follows: Quotient = dividend / divisor = 19 ... Read More
Reversing an array means that we are reversing the order of elements present in the array, but not the array itself. In simpler terms, the element at 0th index will be shifted to the last index of the array and vice versa. There are various ways to reverse an array in JavaScript in this article, we will look into these in detail − Using the reverse() method() The reverse() method in JavaScript reverses the order of the array elements. The first element in the array is swapped with the last element, the second element is swapped with the second last ... Read More
In this tutorial, we are going to learn how to find and print the ASCII value of any character or symbol in Golang. The ASCII stands for American Standard Code for Information Exchange which is a way to represent the characters, and symbols in numeric form. Printing the ASCII value using specifier Algorithm STEP 1 − Declaring the variable of string type STEP 2 − Initializing the variable. STEP 3 − Running the for loop which is printing the ASCII value for each element in the string. Example 1 In this example, we are going to print the ASCII ... Read More
Array is an object which contains multiple values of the same datatype in a sequential order. In other words, we can say that an array is a special type of object in the JavaScript. SyntaxWe can create an array in two ways in JavaScript. The syntax are given below − var arr = [val1, val2, …]; var arr = new Array(“val1”, “val2”, …) Now let us look at a simple JavaScript program to create an array and print its index values − var arr = [1, 2, 3, 4, 5]; document.write(arr[0]); Here, the program returns the content in ... Read More