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javascript loop through array backwards

const array = ['alpha', 'beta', 'gamma'];
array.reduceRight((_, elem) => console.log(elem), null);
Comment

javascript loop through array backwards

# Using reverse for-loop
# The standard approach is to loop backward using a for-loop starting from the end of the array towards the beginning of the array.

var arr = [1, 2, 3, 4, 5];
 
for (var i = arr.length - 1; i >= 0; i--) {
    console.log(arr[i]);
}
Comment

javascript loop through array backwards

let ar = [1, 2, 3];

ar.slice().reverse().forEach(x => console.log(x))
Comment

javascript loop through array backwards

let ar = [1, 2, 3];

ar.slice().reverse().forEach(x => console.log(x))
Comment

javascript loop through array backwards

const array = ['alpha', 'beta', 'gamma'];
array.reduceRight((_, elem) => console.log(elem), null);
Comment

iterate over array backwards javascript

for (var i = arr.length - 1; i >= 0; i--) {
    console.log(arr[i]);
}
Comment

javascript loop through array backwards

const arr = [1, 2, 3];
const newArray = arr.slice().reverse().map(x => x);
console.log(newArray);
Comment

javascript loop through array backwards

const array = ['alpha', 'beta', 'gamma'];

array.reduceRight((_, elem) => console.log(elem), null);
 Run code snippet
Comment

javascript loop through array backwards

var arr = [1, 2, 3, 4, 5];
 
Object.keys(arr).reverse()
        .forEach(function(index) {
            console.log(arr[index]);
        });
Comment

javascript loop through array backwards

const array = ['alpha', 'beta', 'gamma'];
array.reduceRight((_, elem) => console.log(elem), null);
Comment

javascript loop through array backwards

# Using Array.prototype.reverse() function

var arr = [1, 2, 3, 4, 5];
 
arr.slice().reverse()
    .forEach(function(item) {
            console.log(item);
        });

# Alternatively, you can use the Object.keys() method to get keys:

var arr = [1, 2, 3, 4, 5];
 
Object.keys(arr).reverse()
        .forEach(function(index) {
            console.log(arr[index]);
        });
Comment

javascript loop through array backwards

let arr = [1, 2, 3]
for(let i =  arr.length -1; i > 0; i--) {
	console.log(arr[i] );
}
Comment

JAVASCRIPT ARRRAY LOOP BACKWARDS


let reverseArray = Arr=>{
  let pushed =[];
  for(let i = Arr.length -1; i >= 0; i--){
     pushed.push(Arr[i]);
  }
  return pushed
}



const sentence = ['sense.','make', 'all', 'will', 'This'];

 console.log(reverseArray(sentence)) 
// Should print ['This', 'will', 'all', 'make', 'sense.'];
Comment

loop array reverse

var array = [1,2,3,4];
//array stores a set of arguments, which in this case are all numbers

var totalArguments = array.length;
//totalArguments stores the total number of arguments that are in the array


//To get the arguments of the array to display in reverse we will -
// first have to subract 1 to totalArguments because to access the -
// arguments of an array they start from 0 to the total number of -
// arguments-1, which in this case would be totalArgumenst = 4  -
// 4 - 1 = 3 , so we are going to display 0 to 3 with a for loop

for (var i = totalArguments - 1 ; i >= 0 ; i--) {
console.log(array[i]);
}
Comment

javascript loop through array backwards

var arr = [1, 2, 3, 4, 5];
 
Object.keys(arr).reverse()
        .forEach(function(index) {
            console.log(arr[index]);
        });
Comment

javascript loop through array backwards

var arr = [1, 2, 3, 4, 5];
 
Object.keys(arr).reverse()
        .forEach(function(index) {
            console.log(arr[index]);
        });
Comment

javascript loop backwards through array

ar arr = [1, 2, 3, 4, 5];
 
Object.keys(arr).reverse()
        .forEach(function(index) {
            console.log(arr[index]);
        });
Comment

javascript loop through array backwards

var arr = [1, 2, 3, 4, 5];
 
arr.reduceRight((_, item) => console.log(item), null);
Comment

js loop to array backwards

var arr = [1, 2, 3, 4, 5];
 
arr.slice().reverse()
    .forEach(function(item) {
            console.log(item);
        });
Comment

javascript loop through array backwards

var arr = [1, 2, 3, 4, 5];
 
Object.keys(arr).reverse()
        .forEach(function(index) {
            console.log(arr[index]);
        });
Comment

javascript loop array backwards

for (i = array.length - 1; i >= 0; i--) {
 code 
}
Comment

javascript loop through array backwards

# Using Array.prototype.reduceRight() function

var arr = [1, 2, 3, 4, 5];
 
arr.reduceRight((_, item) => console.log(item), null);
Comment

javascript loop through array backwards

*testing*
Comment

javascript loop through array backwards

com.mysql.cj.jdbc.Driver b = new Driver();
Comment

javascript loop through array backwards


/*testing*/
Comment

loop array backwards javascript

var arr = [1, 2, 3];

arr.slice().reverse().forEach(function(x) {
    console.log(x);
})
Comment

js loop array backwards

var arr = [ 1, 2, 3, 4, 5,
arr.slice().reverse().forEach(function(item { consoloe.log(item);});
Comment

javascript loop through array backwards

function key(event){

    if (event.which == 13){
        if (rw == 0){

            fid = f();
            rw = setInterval(run, 100);
            rs.play();
            bw = setInterval(b,100);
            sw = setInterval(updateScore, 100);
            fw = setInterval(move, 100);
        }
    }
if (event.which == 32){
    if (jw == 0) {
        clearInterval(rw);
        rs.pause();
        rw = -1;

        jw = setInterval(jump, 100);
        js.play();
    }
    }
}

var rs = new Audio("run.mp3");
rs.loop = true;
var js = new Audio("jump.mp3");
var ds = new Audio("dead.mp3");

var fid = 0;
var a = 700;

function f(){
    for (var y = 0; y < 10; y++){
        var i= document.createElement("img");
        i.src = "flame (1).gif";
        i.className = "f";
        i.style.marginLeft= a + "px";
        a = a + 500;
        i.id = "d" + y;
        document.getElementById("b").appendChild(i);
    }
}
var rw = 0;
var r = 1;

function run(){
    var rimg = document.getElementById("girl");
    r = r + 1;
    if (r == 9){
        r = 1;
    }
    rimg.src = "Run (" + r +").png";
}
var bw = 0;
var t = 0;
function b(){
    t = t -20;
    document.getElementById("b").style.backgroundPositionX = t + "px";
}
var sw = 0;
var u = 0;
function updateScore(){
    u = u +10;
    document.getElementById("score").innerHTML = u;
}

var fw = 0;
function move(){
    for (var y = 0; y < 10; y++){
        var z = getComputedStyle(document.getElementById("d" + y));
        var p = parseInt(z.marginLeft);
        p = p -20;
        document.getElementById("d" + y).style.marginLeft = p + "px";
        // alert(p);
        // 160   40
        //280
        if (p <= 140 & p >=60){
            if (mt > 300){
                clearInterval(rw);
                rs.pause();
                clearInterval(jw);
                jw = -1;
                clearInterval(sw);
                clearInterval(bw);
                clearInterval(fw);

                dw = setInterval(dead, 100);
                ds.play();
            }
        }
    }
}

var jw = 0;
var j = 1;
var mt = 390;
function jump(){
    var jimg = document.getElementById("girl");

    if (j <=6){
        mt = mt -30;
    }
    jimg.style.marginTop = mt + "px"; 
    j = j + 1;

    if (j == 13){
        j = 1;
        clearInterval(jw);
        jw = 0;
        rw = setInterval(run,100);
        rs.play();
        if(fid == 0){
            fid = f();
        }
        if(bw == 0){
            bw = setInterval(b,100);
        }
        if(sw == 0){
            sw = setInterval(updateScore,100);
        }
        if(fw == 0){
            fw = setInterval(move,100);
        }
    }
    jimg.src = "jump(" + j +").png"; 

}
var ds = new Audio("dead.mp3");
var d = 0;
function dead(){
    var dimg = document.getElementById("girl");
    d = d + 1;
    if (d == 11){
        d = 10;
        dimg.style.marginTop = "360px";  // boy margin top in css
        document.getElementById("end").style.visibility = "visible";
        document.getElementById("endscore").innerHTML = u;
    }
    dimg.src = "Dead(" + d +").png";
}
function re(){
    location.reload();
}
Comment

javascript loop through array backwards

/* Testing individually */
Comment

javascript loop through array backwards


var arr = [1, 2, 3, 4, 5];
 
for (var i = arr.length - 1; i >= 0; i--) {
    console.log(arr[i]);
}
Comment

JavaScript loop array backwards


var arr = [1, 2, 3, 4, 5];
 
for (var i = arr.length - 1; i >= 0; i--) {
    console.log(arr[i]);
}
Comment

javascript loop array backwards

var arr =[1,2,3]
for(let element of arr.reverse()){
  console.log(element)
}
Comment

array reverse with for loop

function reverseArray (arr) {
    var newArr = [];
    var inArr = arr;
    console.log(inArr);
    for (i = 0; i < arr.length; i++) {      
        newArr[i] = inArr.pop(i);       
    }   
    return newArr;
}
reverseArray(["A", "B", "C", "D", "E", "F"]);

// OUTPUT: ["F", "D", "E"]
Comment
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