javascript for loop
var colors=["red","blue","green"];
for (let i = 0; i < colors.length; i++) {
console.log(colors[i]);
}javascript for loop
var colors=["red","blue","green"];
for (let i = 0; i < colors.length; i++) {
console.log(colors[i]);
}js for loop
/*
The for loop is very useful in JavaScript
syntax:
for (initialiser; condition; increment) {
code
}
*/
// print each number between 0 and 9
for (let i = 0; i < 10; i++) {
console.log(i);
}
// for loops are useful when working with arrays
let array = ["a", "b", "c"];
// print each element in the array
for (let i = 0; i < array.length; i++) {
console.log(array[i]);
}
/*
Often for loops start at 0 rather than 1
because they are so commonly used with arrays.
*/for in loop javascript
function diagonalDifference(arr) {
// Write your code here
// return (arr); 11,2,4,4,5,6,10,8,-12
let n = arr.length;
let pri,sec = 0;
pri = sec = 0; //initialize both diagonal sum to 0
for (let i= 0; i < n; i++) {
//console.log( "PRI(arr)= ", i,i);
//console.log( arr[i][i]);
//console.log( "SEC(arr)= ", i,n-i-1);
//console.log( arr[i][n-i-1]);
pri += arr[i][i];
sec += arr[i][n - i - 1];
}
// return |x| is the absolute value of x
if(pri==sec){
return (0);
}else {
if (pri>sec){
return (pri-sec);
}else{
return (sec-pri);
}
}
}Copyright © 2021 Codeinu
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