I tried to create an array of HtmlImageElement using a map on an other array. const foo = Array(5).map(() => new Image()) And I got an array full of empty object Why is that ? Thanks ! Edit : It…
I simply do this: const ar = [1, 2, 3]; ar.reduce(Math.max, 0); // returns NaN ar.reduce((a, c) => Math.max(a, c), 0); // returns 3 as expected Any reason for this behaviour?
I have a list of athlete names in JSON format from a fetch. Using for loop, I want to grab all the names under roster > athlete > name and then inserting them into dropdown menu. But for some reason…
The goal is to add items into the input box and display them in the paragraph below it. But page disappears after the items are displayed. I need the page to stay the way it is and not disappear. Bellow…
I am trying to sort an array of objects and the sorting will be done based on property which will be dynamic I have an array const fruitDetails = [ {item: "Berry", qty: "651042446", stockDate: "2021-09-20"}, {item: "Apple", qty: "23222",…
The problem is that each child element is bound to each parent element, which is why everything is duplicated <?php $json = '[ {"id":3633,"name":"Mobile phones and accessories","left":1,"right":18,"level":1,"elements":0}, {"id":3638,"name":"Mobile phones","left":2,"right":3,"level":2,"elements":174}, {"id":21396,"name":"Tablets","left":19,"right":24,"level":1,"elements":0}, {"id":21450,"name":"Some Tablets","left":20,"right":21,"level":2,"elements":8} ]'; $data = json_decode($json, true); function buildTree($data, $level…
Can someone give me a light on what may be happening here? I have an effect that basically, when I load a product page it updates an state with an array of items, but when I change the product (a…
so basically I build a todo list app, using mern stack and whenever I am adding todo it gives me todo.map error. I have a context from there it is importing some function to fetch! Whenever someone adds a todo…
I wrote my own function to display array structure in a comfortable way. It show's array like that: $data: $data[id] = 3 $config: $config[last_offer_day] = 01.07.2023 and etc. i think my code is too cumbersome. Is there a way to…
String text = "test_123 check_1 123 test_1 ASD@#$ qwer #$%^ test 1 this is book"; and turn it into a string array like: {"test_123","check_1 123","test_1","ASD@#$","qwer #$%^","test 1","this is book"}