Posts (page 54)
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5 min readIn Dart, exceptions can be used to handle and manage exceptional situations that may occur during the execution of a program. Exceptions are objects that are thrown and can be caught and handled by surrounding code.To handle exceptions in Dart, you can use a combination of the try, catch, and finally blocks.try block: The code inside the try block is monitored for any exceptions. If an exception occurs within this block, it will immediately stop executing and proceed to the catch block.
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12 min readTo run React.js on hosting, follow these steps:Install Node.js and npm on your hosting server if you haven't already. Create a new project folder on the server where you want to host your React application. Open a terminal or command prompt and navigate to the project folder. Initialize a new React application by running the command npx create-react-app my-app. Replace "my-app" with the desired name of your application.
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7 min readConditional statements in Dart are used to control the flow of execution based on certain conditions. There are mainly two types of conditional statements: if-else and switch-case.if-else: The if-else statement allows us to execute a certain block of code if a certain condition is true and another block of code if the condition is false. Example: if (condition) { // Code to be executed if condition is true. } else { // Code to be executed if condition is false.
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8 min readTo install Bagisto on 000Webhost, you need to follow these steps:Log in to your 000Webhost account and access the File Manager.Click on the "Upload Files Now" button to upload the Bagisto zip file to your server.After the file is uploaded, right-click on the zip file and select the "Extract" option to extract its contents.Once the extraction is complete, navigate to the extracted folder and locate the "public_html" directory.
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3 min readTo add map values to a list in Dart, you can follow these steps:Create an empty list that will store the map values. List myList = []; Create a map with the desired key-value pairs. Map myMap = { 'key1': value1, 'key2': value2, // add more key-value pairs as needed }; Add the map values to the list using the addAll() method. myList.addAll(myMap.values); This will add all the values from the map to the end of the list.
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5 min readTo modify the print function in Dart, you can define your own custom function that will be used in place of the default print function. Here's a step-by-step explanation of how you can modify the print function:Create a new Dart file or open an existing one where you want to modify the print function. Define your custom function. You can give it any name you like. For example, let's call it customPrint. Here's an example of how you can define it: void customPrint(Object.
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5 min readTo move and rename a file in Dart, you need to first import the dart:io package: import 'dart:io'; Then, you can use the File class to interact with files. Here's how you can move and rename a file:Create a File object representing the source file you want to move and rename. Provide the full path to the file: File sourceFile = File('/path/to/source/file.txt'); Specify the destination path where you want to move the file.
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8 min readTo create a nested map in Dart, you can follow these steps:Start by declaring a Map variable and initialize it with an empty map using the curly braces {}. Map nestedMap = {}; Add key-value pairs to the nested map using the square bracket notation []. The keys can be of any data type, but for this example, let's use strings.
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8 min readNuxt.js, a framework built on top of Vue.js, can be deployed on various hosting platforms and environments. Some popular options include:Traditional web servers: Nuxt.js can be deployed on traditional web servers like Apache or Nginx. Simply build the Nuxt.js application using the nuxt generate command, which generates a static version of the app, and then upload the generated files to the server.
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9 min readTo send emails via Gmail from Dart, you can use the mailer package. Here are the steps to achieve this:Set up your Dart project by creating a new Dart file and importing the necessary packages. import 'package:mailer/mailer.dart'; import 'package:mailer/smtp_server.dart'; Create a function to send the email with the necessary details, including the recipient email, subject, and body.
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5 min readTo get children of XML elements with Dart, you can use the xml package that comes bundled with the Dart SDK. Here's how you can do it:Import the necessary package: import 'package:xml/xml.dart' as xml; Load the XML data from a string or file: String xmlString = '<root><child1/><child2/></root>'; xml.XmlDocument xmlDoc = xml.parse(xmlString); Get the root element of the XML document: xml.XmlElement rootElement = xmlDoc.
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12 min readZabbix server can be deployed in various environments, depending on your requirements and preferences. It is designed to be flexible and scalable, allowing you to monitor and manage your network resources effectively. Here are some common deployment options:On-premises deployment: You can install and run Zabbix server on your own physical or virtual servers within your organization's network infrastructure.