I have a requirement to sort the data and below is what my data looks like. [ { "id": "course1", "type": "course", "sequence": 1 }, { "id": "course2", "type": "course", "sequence": 2 }, { "id": "course1_chapter1", "type": "chapter", "sequence": 1,…
I am reading a string from a database that is composed of commas separated items,eg 3.99,10 weeks,300 That is not the problem. So I explode this: $fn = array(explode(",",$im->features)); to get the individual items for the array. But when I…
I need to generate a large array of numbers ranging from 0.00 to say 10000000.00 i.e 0.01 0.02 0.03 ... 1.51 1.52 1.583 ... etc After looking around, I tried this answer which works fine for integers but however not…
I have 2 arrays Say Example A1 = [1,2,3] A2 = [4,5,6] The output I need is A3 = [1,4,2,5,3,6] i.e the output I need is first value of first array followed by first value of second array and so…
I'm developing a pomodoro Task App in React JS. I have an array which it called "task", I'm using "useState" hook. I have no problem with adding new "task". But when I try to delete an element from this array,…
I want to make a new array from a JSON. The problem is I don't know the structure of the JSON I will be getting. It could be anything. But I know the JSON's key which will contain all the…
function confirmUserID($session_id, $userid) { /* Verify that user is in database */ $query = "SELECT session_id FROM user_sessions WHERE session_id = '$session_id' AND userid = '$userid'"; $stmt = $this->db->prepare($query); $stmt->execute(array(':userid' => $userid, ':sessionid' => $session_id)); // Error message indicates it…
I have an object containing arrays, I want to count the number of occurrences a particular string is found across all arrays in the object. const festivals = { 'Danny': ['Glastonbury','Glastonbury','Leeds','Leeds','Leeds','Benicassim','MadCool'], 'Jimbo': ['Glastonbury','Glastonbury','Leeds','Leeds','Leeds','Leeds','Benicassim','MadCool'], 'Richard': ['Glastonbury','Leeds','Leeds','Benicassim','MadCool'], 'John': ['Glastonbury','Leeds'] } let totalFestivals…
If I want to get the second element of an array, I simply index it with 1: const arr = [2, 3, 5, 7, 11] console.log(arr[1]) Outputs 3 Is there a way to index multiple elements of an array with…
I have 2 arrays and I need to display the elements of each array depending on their total number In total, 2 elements from each array should be displayed, but if one of the arrays has 1 element, then display…