I'm a total beginner in JS. Now trying to handle arrays
question: why the code below doesn't work. The aim is to make a function that adding the variable to the arrays but the outcome is still undefined. I hot stucked.
var b = [];
var n = 1;
function name() {
b.push(n);
console.log(b);
}
console.log(b);
You need to call the name() function, then your code will work as expected
var b = []; var n = 1;
function name() { b.push(n); console.log(b); };
name();.as-console-wrapper { max-height: 100% !important; top: 0; }You could also create an IIFE (Immediately-invoked function expression, like so:
(() => {
var b = [], n = 1;
b.push(n);
console.log(b);;
})().as-console-wrapper { max-height: 100% !important; top: 0; }In the code you written function name is declared but never used. Try to call the function like this name()
var b = []; var n = 1;
function name() {
b.push(n); console.log(b);
}
name();There are two ways to do this.
Either make that function IIFE(Immediately Invoked Function Expression) or call that function
IIFEes are generally used for reducing the pollution of global scope.
First way by calling the function explicitly:-
var b = [];
var n = 1;
function name() {
b.push(n);
console.log(b);
}
name()
console.log(b);Second way is using IIFE
var b = [];
var n = 1;
(function name() {
b.push(n);
console.log(b);
})()
console.log(b);