Константы JavaScript
const x = 5;
x = 10; // Error! constant cannot be changed.
console.log(x)
SAMER SAEID
const x = 5;
x = 10; // Error! constant cannot be changed.
console.log(x)const elem = document.getElementById('elementID');const PI = 3.141592653589793;
PI = 3.14; // This will give an error
PI = PI + 10; // This will also give an errorconst obj = {
name: "Fred",
age: 42,
id: 1
}
//simple destructuring
const { name } = obj;
console.log("name", name);
//assigning multiple variables at one time
const { age, id } = obj;
console.log("age", age);
console.log("id", id);
//using different names for the properties
const { name: personName } = obj;
console.log("personName", personName);
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