arrays

问题 I've been working on a tool to help people keep track of their cars in GTA, but I can't figure out how to remove them. I've tried multiple things, but can't get it to work. Here's my codepen https://codepen.io/Tristangre97/pen/dyoyOKw?editors=1010 function deleteItem(index) { var existingEntries = JSON.parse(localStorage.getItem("allCars")); existingEntries.splice(0, index); // delete item at index } 回答1: Splice won't update the local storage, instead, once you have removed the items you need

问题 What is the following C code in MIPS? f = A[B[i]] I'm told it can be done in 6 lines but can't quite figure out how. f is in $t0 , i is in $t3 , A[] is in $s0 , and B[] is in $s1 . All types are integer. The best I am able to think of is lw $t5, $t3($s0); # Doesn't work because lw syntax doesn't accept a register as an offset lw $t6, $t5($s1); sadd $t0, $t6, $zero Obviously this is wrong. How would i go about getting the correct offset for each line? Thanks. 回答1: There might be more efficient

问题 https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/filter as per document says The filter() method creates a new array with all elements that pass the test implemented by the provided function. According to document below script should console Learning console.log(Arr[0].name) // Learning var Arr = [{name:'Learning'},{name:'Questing'}] var Arr2 = Arr.filter(it=> true); Arr2[0].name = 'Stack-Over-Flow'; console.log(Arr[0].name) // Stack-Over-Flow 回答1: Yes,

问题 i am getting the error "Cannot convert value of type 'Int' to expected argument type 'Dictionary.Index'" at lines 8 & 9 ("let k" & "for y in") var namesDictionary = [String: [classObject]]() func checkFavoriteCount(table:UITableView) { favArray.removeAll() for x in (0...namesDictionary.keys.count - 1) { let k = namesDictionary[x].key for y in (0...namesDictionary[x].value.count - 1) { if (namesDictionary[k]?[y].isFav ?? false) { favArray.append((namesDictionary[k]?[y])!) } } } tableView

问题 I am doing gift (String-type) storage, using arrays, with the maximum 500 million. I want to get the number of used elements in an array like how many gifts are currently in stock, (I.E. I stored 253538 gifts, but I don't know that. Is there a command in Java that can know that there is only 253538 Slots in the array that contain an element). But I don't know how to. Here's the snippet of code I want to use: static String[] Gifts = new String[500000000]; static int i = 0; String command, Gift

问题 So I have this code which I found on the internet which takes an array of negative and positive numbers and rearranges the array so all negative numbers are before the positive ones. But the position of appearance of each number has to remain the same. So for example if i have -2 5 -9 ..... , in the organized array -2 still has to be the first number of the negative ones and -9 has to be the second of the negative ones, also 5 has to be the first number of the positive ones. Example: Input:

问题 So I have this code which I found on the internet which takes an array of negative and positive numbers and rearranges the array so all negative numbers are before the positive ones. But the position of appearance of each number has to remain the same. So for example if i have -2 5 -9 ..... , in the organized array -2 still has to be the first number of the negative ones and -9 has to be the second of the negative ones, also 5 has to be the first number of the positive ones. Example: Input:

问题 So I have this code which I found on the internet which takes an array of negative and positive numbers and rearranges the array so all negative numbers are before the positive ones. But the position of appearance of each number has to remain the same. So for example if i have -2 5 -9 ..... , in the organized array -2 still has to be the first number of the negative ones and -9 has to be the second of the negative ones, also 5 has to be the first number of the positive ones. Example: Input:

问题 This question already has answers here : Why do we need to specify the column size when passing a 2D array as a parameter? (6 answers) Closed 5 months ago . I want to create an array that has that stores the multiplication values of any integer n. After that, I would like to pass that array into another function and print out the array. However, I get the following error: My code: This is my .c file: #include "multiplication.h" #include <stdio.h> int main(){ int num; int arr=multiplication(4)

问题 I'm trying to get a column to automatically fill up with incrementing strings depending on the row number in an ARRAYFORMULA in Google sheets. I can easily get a column to show a shifted row number by putting =ARRAYFORMULA(ROW(A:A)-1) in the top cell. However trying to use this ROW call inside CONCATENATE does not give me the result I want, I've tried with and without TO_TEXT . In the image the formula used for the different columns are: A1: =ARRAYFORMULA(ROW(A:A)-1) B1: =ARRAYFORMULA(IF(ROW