arrays Questions

JSON Tree PHP using a recursive function

July 12, 2023
Alex Boyarchuk
2 Answers

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…

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Reactjs – Cleaning up state on useEffect hook

July 12, 2023
Felipe Lemos
2 Answers

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…

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Javascript – todo.map is not a function

July 12, 2023
Tanishq
2 Answers

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…

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Php – My function to display array structure in a comfortable way

July 12, 2023
Eugene
2 Answers

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…

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Flutter – how to split each line of sentence into Array of string

July 12, 2023
Sandeep Sudhakar
4 Answers

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"}

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Javascript – Using JS array splice in one line and two lines got different result

July 12, 2023
DNB5brims
3 Answers

Code 1: let targetArr = ["hello", "world", "my", "name"]; let errnewArr = Array.from(targetArr).splice(2, 1); console.log("errnewArr array : "+errnewArr.length); Code 2: targetArr = ["hello", "world", "my", "name"]; let newArr = Array.from(targetArr); newArr.splice(2, 1); console.log("new array : "+newArr.length); As you can see…

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PHP search array

July 11, 2023
RobertN
2 Answers

I have a database with 2 tables. Via an sql query I get the (joined) info and put it into an array $rsvpData. I now want to print this data but combine group/couples/families with the same id as one and…

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Javascript – Join texts based on condition in an array of dictionaries in JS/React

July 11, 2023
Priyankar Bose
3 Answers

I have data like this: Record= [ { "tid": 1, "token_text": "Canis", "spanid": 1, "label": "Name" }, { "tid": 2, "token_text": "Familiaris", "spanid": 1, "label": "Name" }, { "tid": 3, "token_text": "is" }, { "tid": 4, "token_text": "the" }, {…

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Display data fetched from API in HTML Table

July 11, 2023
learnig-harsh
2 Answers

I am writing a script for a web page that makes an ajax call & fetches data using API cal from "Task" doctype and its child table "Work Details". While the data is fetched properly, Only the data from the…

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Javascript – Unexpected commas in output using a 2d array

July 11, 2023
itsjames212
3 Answers

I used a class to class to organize everything I needed in this small project and made it require a 2d array to print out a field to the screen class Field { constructor(fieldArr) { this.fieldArr = fieldArr; } get…

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