javascript reverse array
var arr = [34, 234, 567, 4];
print(arr);
var new_arr = arr.reverse();
print(new_arr);javascript reverse array
var arr = [34, 234, 567, 4];
print(arr);
var new_arr = arr.reverse();
print(new_arr);js reverse nested array
var reversed = array.map(function reverse(item) {
return Array.isArray(item) && Array.isArray(item[0])
? item.map(reverse)
: item.reverse();
});.reverse javascript
const array1 = [1,2,3,4];
console.log('array1:', array1);
//"array1:" Array [1, 2, 3, 4]
const reversed = array1.reverse();
console.log('reversed:', reversed);
//"reversed:" Array [4, 3, 2, 1]
// Careful: reverse is destructive -- it changes the original array.
console.log('array1:', array1);
//"array1:" Array [4, 3, 2, 1]how to reverse array in javascript
// reversing an array in javascript is kinda hard. you can't index -1.
// but i can show how you can do it in 4 lines.
var myArray = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10];
for (var i = myArray.length - 1; i > 0; i -= 1) {
myArray.shift();
myArray.push(i);
}
console.log(myArray); // output: [10, 9, 8, 7, 6, 5, 4, 3, 2, 1]reverse array js
var arr = ["f", "o", "o", "b", "a", "r"];
arr.reverse();
console.log(arr); // ["r", "a", "b", "o", "o", "f"]Copyright © 2021 Codeinu
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