“histing en javascript” Réponses codées

Pourquoi JavaScript a-t-il le hissage

// why does javascript have hoisting?

As Stoyan Stefanov explains in "JavaScript Patterns" book, the hoisting is 
result of JavaScript interpreter implementation.

The JS code interpretation is performed in two passes. 
a) During the first pass, the interpreter processes 
variable[NOT the initialitations] and function declarations.

b)The second pass is the actual code execution step. The interpreter processes 
function expressions and undeclared variables.

Thus, we can use the "hoisting" concept to describe such behavior.
Smiling Starling

histing en javascript

// hoisting is as if your `function fun() {}` was located here. 

fun(); // works. 

function fun() {}
madhav

Hoite de fonction JavaScript

// program to print the text
greet();

function greet() {
    console.log('Hi, there.');
}
SAMER SAEID

Comment fonctionne le levage JavaScript?

console.log(num); // Returns 'undefined' from hoisted var declaration (not 6)
var num; // Declaration
num = 6; // Initialization
Ariful Islam Adil(Code Lover)

Histes de fonction dans JS

console.log(functionBelow("Hello"));
function functionBelow(greet) {
   return `${greet} world`;
}
console.log(functionBelow("Hi"));
Yellowed Yak

Histes de fonction dans JS

console.log(functionBelow("Hello"));
var functionBelow = function(greet) {
   return `${greet} world`;
}
console.log(functionBelow("Hi"));
Yellowed Yak

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