Dati di input in un file di testo
Cristina In questa lezione andremo a memorizzare dei dati di input in file di testo in Python, creando una semplice rubrica che contiene i nomi ed i telefoni dei nostri amici.…
write Python
In questa lezione studieremo il metodo write in Python per poter scrivere sui file di testo. Dopo aver aperto il file in scrittura possiamo infatti scrivere su di esso. f…
open in Python
In questa lezione studieremo la funzione open in Python, ovvero vedremo come aprire un file di testo o binario. Nella precedente lezione abbiamo parlato di file e abbiamo visto la…
JavaScript shift and unshift
With the shift and unshift methods I remove and add respectively an element at the beginning of each array in JavaScript. The syntax of these methods is as follows: array.unshift…
JavaScript pop
In this lesson we will cover the pop method in JavaScript, which is useful for deleting elements in an array. In the previous lesson we have dealt with the push…
JavaScript array push
In this lesson we will see how to insert data into a JavaScript array push method, useful to insert element in array. The syntax of this method is as follows:…
JavaScript array
In JavaScript an array is a useful tool for storing multiple data even of different types. In fact, JavaScript, like other programming languages, allows the creation and management of arrays.…
createTextNode JavaScript
Continuiamo il nostro tutorial utilizzando il metodo createTextNode in JavaScript, ovvero il metodo che ci consente di inserire del testo in un nodo. Infatti, dopo aver creato un nuovo elemento…
JavaScript createElement
In this lesson we study JavaScript createElement method, useful to create new elements in the DOM. In the previous article we saw how to manipulate the DOM in JavaScript and…
JavaScript DOM
In JavaScript it is possible to manipulate the DOM. In these lessons we will learn for example how to create new elements, add attributes or even delete elements in the…
callbacks in JavaScript
In this lesson I propose some examples of the use of callbacks in JavaScript. I have already covered these callback functions in the following articles: JavaScript functions and return JavaScript…
JavaScript setTimeout
JavaScript setTimeout is a method that allows you to call a function after a certain period of time, expressed in milliseconds. The syntax of this method is: setTimeout(function, milliseconds, p1,…
functions in JavaScript
In this lesson we will delve into the functions in JavaScript, already introduced in the previous lesson. The lesson can be consulted at the following link: introduction to functions. functions…
callback functions
The callback functions are used in JavaScript to ensure that the code is asynchronous, i.e. executed after a certain event, such as when a button is clicked, or when you…
callbacks
Callbacks in JavaScript, as seen in the previous lesson, can be passed as arguments to other functions. In fact, functions in JavaScript are objects. We can also see this simply…
JavaScript callback
In this lesson we will talk about JavaScript callback functions, which are functions that are passed as parameters to other functions. In the JavaScript version ES5 they are widely used,…
format JSON
format JSON – JSON is a format used for data exchange and is the acronym for JavaScript Object Notation. It is based on the JavaScript language and is used a…
prompt JavaScript
In this article we will talk about prompt in JavaScript, that is, windows that require a user to enter data. The prompt () method therefore allows you to bring up…