Notice: This page requires JavaScript to function properly.
Please enable JavaScript in your browser settings or update your browser.
Apprendre Strings 4/5 | Data Types and Variables
Introduction to JavaScript (staging)
course content

Contenu du cours

Introduction to JavaScript (staging)

Introduction to JavaScript (staging)

1. Introduction
2. JavaScript syntax
3. Data Types and Variables

book
Strings 4/5

Strings are Immutable:

Strings, in JavaScript, are immutable which means that their values cannot be changed once declared.

Let’s try to understand this with an example.

1234
let stringVariable = 'JavaScript'; // changing the value of first character. stringVariable[0] = 'A'; console.log(stringVariable[0]);
copy

The value did not change.

To do so, the usual practice is to create a new string variable with the value that we want to change and attach the parts of the older string to it. In this way, we can change the string,

1234
let str = 'Gi'; // replacing the string G with H str = 'H' + str[1]; console.log(str);
copy
Tâche

Swipe to start coding

A variable name order with the assigned value of go has been given to you. Your task is to change the value go to to and display it.

Solution

Switch to desktopPassez à un bureau pour une pratique réelleContinuez d'où vous êtes en utilisant l'une des options ci-dessous
Tout était clair ?

Comment pouvons-nous l'améliorer ?

Merci pour vos commentaires !

Section 3. Chapitre 22
toggle bottom row

book
Strings 4/5

Strings are Immutable:

Strings, in JavaScript, are immutable which means that their values cannot be changed once declared.

Let’s try to understand this with an example.

1234
let stringVariable = 'JavaScript'; // changing the value of first character. stringVariable[0] = 'A'; console.log(stringVariable[0]);
copy

The value did not change.

To do so, the usual practice is to create a new string variable with the value that we want to change and attach the parts of the older string to it. In this way, we can change the string,

1234
let str = 'Gi'; // replacing the string G with H str = 'H' + str[1]; console.log(str);
copy
Tâche

Swipe to start coding

A variable name order with the assigned value of go has been given to you. Your task is to change the value go to to and display it.

Solution

Switch to desktopPassez à un bureau pour une pratique réelleContinuez d'où vous êtes en utilisant l'une des options ci-dessous
Tout était clair ?

Comment pouvons-nous l'améliorer ?

Merci pour vos commentaires !

Section 3. Chapitre 22
Switch to desktopPassez à un bureau pour une pratique réelleContinuez d'où vous êtes en utilisant l'une des options ci-dessous
We're sorry to hear that something went wrong. What happened?
some-alt