< 1 min readTo read environment variables in Node.js, you can use the process.env object. The process.env object contains a property for each of the environment variables that are available to the Node.js process. You can access the value of an environment variable using dot notation or bracket notation. Here’s an example of how you can read an…
< 1 min readTo get the GET query parameters in an Express.js server, you can use the query property of the request object. Here’s an example of how you can get the GET query parameters in an Express.js server using the query property: In this example, the query property of the request object contains the GET query parameters…
< 1 min readmodule.exports is a special object in Node.js that is used to expose objects, functions, or variables to the module system. It allows you to reuse code in your application by breaking it down into smaller, modular units called “modules”. To use module.exports, you can assign the object, function, or variable that you want to expose…
< 1 min readThe process.argv property returns an array containing the command-line arguments passed when the Node.js process was launched. The first element will be process.execPath. See process.argv0 if access to the original value of argv[0] is needed. The second element will be the path to the JavaScript file being executed. The remaining elements will be any additional…
< 1 min readThe –save option for npm install is used to save the installed package as a dependency in the package.json file of the project. By default, npm install installs a package in the local node_modules directory, but does not update the dependencies section of the package.json file. This means that the installed package will not be…
< 1 min readIn the package.json file of a Node.js project, the tilde (~) and caret (^) are used to specify version constraints for dependencies. The tilde (~) indicates that the specified version or higher is acceptable, but only within the same minor version. For example, if a package depends on ~1.2.3, it will accept version 1.2.4, but…
< 1 min readTo get the last inserted ID in Laravel Eloquent, you can use the id property of the model instance after saving it to the database. For example, if you have a User model and you want to get the ID of the last inserted user, you can do the following: Alternatively, you can use the…
< 1 min readTo get the raw SQL query as a string in Laravel, you can use the toSql method of the query builder instance. Here is an example of how you can use it: The toSql method returns the raw SQL query as a string, which you can then output or use in your application as needed….
< 1 min readIn PHP, self is a keyword that refers to the current class, while $this is a reference to the current object. self is used to access static properties, constants, and methods of the current class, while $this is used to access non-static properties and methods of the current object. For example: In the above example,…
< 1 min readTo display PHP errors in your PHP scripts, you can use the error_reporting and ini_set functions. The error_reporting function sets the level of error reporting in your PHP scripts. You can use it to specify which types of errors you want to be reported. For example, to report all errors, you can use the following…
