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- /*//Tablica z elementami
- var arr = [1, 4, 5, 7];
- //Długość tablicy
- console.log(arr.length, 'Długość');
- //iterowanie po tablicy
- for (var i = 0; i < arr.length; i++) {
- console.log(arr[i]);
- }
- //dodawanie do tablicy na koniec nowego elementu
- arr.push('New Value');
- console.log(arr);
- //Dostawanie się do konretnych elementów
- console.log(arr[1]);
- /////////////////////////////*/
- function isNumbersGrowing(array) {
- for (var i = 1; i < array.length; i++) {
- if (array[i - 1] >= array[i]) {
- return false;
- }
- }
- return true;
- }
- console.log("tablica [1,2,3,4,5,6,7] jest rosnąca (powinno zwrócić true) " + isNumbersGrowing([1, 2, 3, 4, 5, 6, 7]));
- console.log("tablica [1,2,10,4,5,6,7] nie jest rosnąca (powinno zwrócić false) " + isNumbersGrowing([1, 2, 10, 4, 5, 6, 7]));
- console.log("tablica [-5,-4,0,4,6,21] jest rosnąca (powinno zwrócić true) " + isNumbersGrowing([-5, -4, 0, 4, 6, 21]));
- console.log("tablica [-1,2,-1,4,5,6,7] nie jest rosnąca (powinno zwrócić false) " + isNumbersGrowing([-1, 2, -1, 4, 5, 6, 7]));
- console.log("tablica [8] jest rosnąca (powinno zwrócić true) " + isNumbersGrowing([8]));
- function sumArray(arr) {
- var sum = 0;
- for (var i = 0; i < arr.length; i++) {
- sum += arr[i];
- }
- return sum;
- }
- function multiplyArray(arr) {
- var sum = 1;
- for (var i = 0; i < arr.length; i++) {
- sum *= arr[i];
- }
- return sum;
- }
- //
- // console.log(sumArray(
- // [1, 2, 3, 4]
- // ));
- // console.log(multiplyArray(
- // [1, 2, 3, 4]
- // ));
- function distFromAvarage(arr) {
- var avg = sumArray(arr) / arr.length;
- for (var i = 0; i < arr.length; i++) {
- arr[i] = Math.abs(arr[i] - avg);
- }
- return arr;
- }
- console.log(distFromAvarage([1, 2, 3, 4, 5, 6, 7]));
- console.log(distFromAvarage([1, 1, 1, 1]));
- console.log(distFromAvarage([2, 8, 3, 7]));
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