I've spent days and days on this trying various techniques I have red on here and other forums but just cant get my head a round it. I've tried .map(), I've tried global variables, I've tried everything I can think…
Updating state of array didn't work like expected! I'm making a Tic-Tac-Toe Game with this detail: I have a state called gameBoardState (an 3x3 array) that contains the position of 'X' & 'O' with initial value of all 'null'. **const…
I have json array and i want output with php in table and then put everything in database. json: JSON array ( 0 => array ( 'countryCode' => 'GB', 'mailTypes' => array ( 0 => array ( 'mailType' => 'MediumCorrespondence',…
So, I'm going through some React studying and I'm current just doing small code. I was writing two files. The first is where my data is in my variable. I'm using a basic map method to loop through my array…
In the map() and filter functions(), is the iteration variable implicitly defined in it? or we can also explicitly define a variable to iterate through the array? const numberArray = [1, 2, 3, 4, 5]; const res = numberArray .map(number…
When duplicating an array and using sort(), why do both arrays get sorted? For example: c = [2,4,9,1,10]; b = c; b.sort(); console.log(b+" "+c) I was expecting the array (c) to remain as [2,4, 9, 1, 10] instead it returns…
I am trying to match up my array with the manner which the array needs to be sent to another file. I am able to pass the data successfully but as its not in the right structure not getting the…
I have an object let files = { '00':{}, '01':{}, '02':{}, '03':{}, '04':{}, '05':{}, '06':{}, '07':{}, '08':{}, '09':{}, '10':{}, '11':{}, '12':{}, '13':{}, '14':{}, '15':{} } console.log(Object.keys(files)) the result I'm getting is this. ["10","11","12","13","14","15","00","01","02","03","04","05","06","07","08","09"] 1. why it's reading key from 10…
So I am very new to coding and have run into an issue when it comes to comparing arrays, especially ones that are nested and trying to pull out values that match using their indices into a new array. Say…
I have query like select billing_number, created, amount_total_sum, days, country, status, check_in_date, concat(elements->> 'isPossible', elements-> 'UTCDateFrom' ->> 'date', ' - ', elements-> 'UTCDateTo' ->> 'date' ) from (select o.billing_number, o.created, o.amount_total_sum, t.check_in_date, t.check_out_date - t.check_in_date as days, t.hotel_country as country,…