[Solved] Matlab sort every other column
For each set of two columns, you can use sortrows. for idx=1:2:size(M,2) M(:,idx:idx+1)=sortrows(M(:,idx:idx+1),2) end 2 solved Matlab sort every other column
arrays
[Solved] Given two strings S and T, return if they are equal when both are typed into empty text editors. # means a backspace character
The first mistake is pushing all the characters on the stack outside of the if statement. Also you should check if stack is empty before removing items from it. Otherwise EmptyStackException is thrown. // stack1.push(S.charAt(i)); <– remove this line if (S.charAt(i)!=’#’) { stack1.push(S.charAt(i)); }else if (!stack1.isEmpty()) { // <– add this check stack1.pop(); } The … Read more
[Solved] convert a string JSON into an Array [duplicate]
Use JSON.parse() and replace the starting and ending ” with backticks JSON.parse(`[ { “userId”: 1, “id”: 1, “title”: “delectus aut autem”, “completed”: false }, { “userId”: 1, “id”: 5, “title”: “laboriosam mollitia et enim quasi adipisci quia provident illum”, “completed”: false } ]`) solved convert a string JSON into an Array [duplicate]
[Solved] Read the first index of array for checking a boolean [closed]
If the array could be empty this is a safe way if myarray.first?.isRunning == true { or (also safe) if !myarray.isEmpty, myarray[0].isRunning { If the array is never empty then your bad way is good. 0 solved Read the first index of array for checking a boolean [closed]
[Solved] I don’t know what to do next [closed]
I’ll help you with some parts, but most of this code should be a learning experience for you. import datetime # prompt here for the date # put it into a datetime.datetime object named “day” # this is the part of the code you need to type day_array = [“Monday”,”Tuesday”,”Wednesday”,”Thursday”,”Friday”,”Saturday”,”Sunday”] day_of_week = day_array[day.weekday()] The datetime … Read more
[Solved] how to turn array into array of objects
You can use map const words = [“hello”, “world”, “how”, “are”, “you”] let op = words.map((value,key) => ({[key]: value})) console.log(op) solved how to turn array into array of objects
[Solved] Creating a JavaScript global array with static elements?
The problem isn’t that removeFunction doesn’t have access to bigArray. The problem is in your onclick attribute, and the id you’re putting on the link: $(‘#div’).append(“<a href=”#” id=’bigArray[i]’ onclick=’removeFunction(bigArray[i])’>Element bigArray[i]</a><br />”); In the onclick, you’re referring to i, but A) I’m guessing i isn’t a global, and B) Even if it is, it will not … Read more
[Solved] How do I create a new array and copy the last elements of the old array into the new array while the new array is smaller?
Works for me void resize(double *&a, int oldSize, int newSize) { double *a1 = new double[newSize](); if (newSize > oldSize) { for (unsigned i = 0; i < oldSize; i++) { a1[i] = a[i]; } } else if(oldSize > newSize) { for (unsigned i = 0; i < newSize; i++) { a1[i] = a[oldSize – … Read more
[Solved] What is the difference between the lists
list1 is a list that contains 1 element that is an numpy.array that contains multiple floats64. list2 is list that contains 1 element that is a list that contains multiple strings (that happen to look a lot like floats). You can convert them like so: import numpy as np # list of list of strings … Read more
[Solved] transforming elements in array from numbers to string
Map over the array and assign each key value pair to a new object after converting it to a string. const array = [{abcd:1, cdef:7},{abcd:2, cdef:8}, {abcd:3, cdef:9}]; array.map(el => { const stringObj = {} Object.keys(el).forEach(key => { stringObj[key] = el[key].toString(); }) return stringObj; }) 1 solved transforming elements in array from numbers to string
[Solved] Swift – Deleting a value in an array from an element
You can use filter to keep only the elements of the array whose age property doesn’t equal 10. let filtered = array.filter { $0.age != “10” } Unrelated to your question, but why is age a String? It should be an Int instead, since it represents a numeric value. Also, you should always make properties … Read more
[Solved] PHP Strip specific keys in array
Assuming that you want to so something(remove Arrival) on each of the values, you can use this: <?php $results = array ( ‘date’ => ’22. jan.’, ‘flightNumber’ => ‘EZY6747’, ‘airline’ => ‘easyJet’, ‘from’ => ‘Belfast International’, ‘plannedArrival’ => ’18:35′, ‘realArrival’ => ‘Estimated Arrival 18:32’ ); $result2 = array_map(function($s) { return str_replace(‘Arrival ‘, ”, $s); }, … Read more
[Solved] add array together, display sum [duplicate]
Well if you want just the total output at the end then you need to log total to the console after the loop. Based on my understanding of what you want to do I think something like the following is all that’s needed… function hello() { var arr = []; for (var i = 0; … Read more
[Solved] How to search duplicate value in array
You can do it with simple for loop : $arr = array([“id” => 7, “a” => “”], [“id” => 6, “a” => “AAA”], [“id” => 4, “a” => “AAA”]); $ans = []; foreach($arr as $elem) $ans[$elem[“a”]][] = $elem[“id”]; This will output associative array with the “a” value as keys – if you only want to … Read more
[Solved] Heap Sort array
PriorityQueue<Integer> pQueue = new PriorityQueue<Integer>(); This line creates a priority queue of Integers. A priority queue stores a “sorted” list of items (in your case Integers). When you add an int to pQueue ,it is places the value in the correct position. E.g if I add numbers 1, 10 and 5 in this order to … Read more