array

How can I make Array.Contains case-insensitive on a string array?

匿名 (未验证) 提交于 2019-12-03 09:05:37
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试): 问题: I am using the Array.Contains method on a string array. How can I make that case-insensitive? 回答1: array.Contains("str", StringComparer.OrdinalIgnoreCase); Or depending on the specific circumstance, you might prefer: array.Contains("str", StringComparer.CurrentCultureIgnoreCase); array.Contains("str", StringComparer.InvariantCultureIgnoreCase); 回答2: Some important notes from my side, or at least putting some distributed info at one place- concerning the tip above with a StringComparer like in: if (array.Contains("str", StringComparer

How to check if an array of integers is sorted?

匿名 (未验证) 提交于 2019-12-03 09:05:37
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试): 问题: Would you have code that just sorts it for you and after its done sorting see if there's any changes. Would you use a certain type of sort like insertion sort, selections or something along those lines int[] arr = {4,1,3,8,9,2,7,0,5,6}; System.out.println(Arrays.toString(arr)); selectionSort(arr); public static void selectionSort (int []arr) { for(int i = 0; i < arr.length; i ++) { //find the ith element int smallest = i; for (int j = i + 1; j <arr.length; j++) { //find the smallest unsorted element if(arr[j] < arr[smallest]) { smallest = j;

NSArray objectAtIndex index 0 beyond bounds for empty array

匿名 (未验证) 提交于 2019-12-03 09:05:37
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试): 问题: I'm working on someone else's app and and I'm getting this error: 'NSRangeException', reason: '*** -[__NSArrayI objectAtIndex:]: index 0 beyond bounds for empty array' Xcode points to this line: NSDictionary *geo = [response[0] objectForKey:@"geometry"]; Here's the full method: - (void)loadLatLong { indx ++; if (indx == [datalist count]) { [self showMarker]; // self.alertView.hidden = true; // [self setThreeQuarters]; [self.progressbar setProgress:1.0 animated:YES]; return; } PointClass *pt = datalist[indx]; NSString *stPt = [pt.Location

Angularjs &#039;Access-Control-Allow-Origin&#039; using Laravel CORS

匿名 (未验证) 提交于 2019-12-03 09:05:37
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试): 问题: I have just installed Laravel CORS by barryvdh , the module works fine to my knowledge but i seem to be still facing the Access-Control-Allow-Origin error XMLHttpRequest cannot load http://acns.example.com:8000/status/d6uIlvwwi8PrvQe4kQfufyZ0LlqQqJyGeyJjdC …I4OTYzMTJlYzYyMmMxOTVkNWI5YjNjYzM1MTczNyIsInMiOiI2ZDcwZDg5N2FkOTQxZDFkIn0=. No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin ' http://www.example.com:8000 ' is therefore not allowed access. below is my angular code to execute the function: var SomeApp =

ValueError :Setting an array element with a sequence using numpy

匿名 (未验证) 提交于 2019-12-03 09:05:37
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试): 问题: I have this piece of code in python data = np.empty(temp.shape) maxlat = temp.shape[0] maxlon = temp.shape[1] print(maxlat,maxlon) for i in range(0,maxlat) : for j in range(0,maxlon): data[i][j] = p_temperature(pr,temp[i][j]) When I run this code in Python 3.5, I get this error ValueError : setting an array element with a sequence The value of maxlat is 181 and the value of maxlon is 360 . The shape of temp array is (181,360) I also tried the suggestion in the comments: for i in range(0,maxlat) : for j in range(0,maxlon): data[i][j] = temp[i

c++ array - expression must have a constant value

匿名 (未验证) 提交于 2019-12-03 09:02:45
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试): 问题: I get an error when I try to create an array from the variables I declared. int row = 8; int col= 8; int [row][col]; Why do I get this error: expression must have a constant value. 回答1: When creating an array like that, its size must be constant. If you want a dynamically sized array, you need to allocate memory for it on the heap and you'll also need to free it with delete when you're done: //allocate the array int** arr = new int*[row]; for(int i = 0; i If you want a fixed size, then they must be declared const: const int row = 8; const

PowerShell - if statement condition that produces multiple results

匿名 (未验证) 提交于 2019-12-03 09:02:45
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试): 问题: Please consider this silly example: if (1..3) { "true" } The above produces the output true . My question: How does the if statement handle a case like this where multiple values are output by the conditional? Is the "true" output the result of the "3" (the last case)? Or is some other logic at work? Thanks. 回答1: The above produces the output true, as expected. Why do you expect it to output "true"? How does the if statement handle a case like this where multiple values are output by the conditional? The conditional does not "output" any

Two Dimensional Array With Ruby

匿名 (未验证) 提交于 2019-12-03 09:02:45
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试): 问题: I am trying to take in a 2D array, search for any space that is greater than 0, then increment the surrounding spaces by 1. array = [[0,0,0], [0,1,0], [0,0,0]] The final output should look like this new_array = [[0,1,0], [1,1,1], [0,1,0]] The way I have it set up currently is returning [1,1,1,1] It is incrementing the correct spaces, I think, I just am not sure how to put them back into the original arrays and then return the 2D array. Clearly some steps are missing, any help would be greatly appreciated. I understand why it is returning the

Reversing an array in assembly

匿名 (未验证) 提交于 2019-12-03 09:02:45
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试): 问题: I'm trying to figure out how to reverse an array in assembly in a way that makes it as flexible as possible. The code I have so far is this: ; This program takes an integer array and reverses it's elements, using a loop, the SIZE, TYPE and LENGTHOF ; operators. TITLE lab4 (lab4.asm) INCLUDE Irvine32.inc .data arr DWORD 1h, 2h, 3h, 4h, 5h, 6h ; Array of integers with 6 elements. len DWORD LENGTHOF arr / 2 ; The length of the array divided by 2. ;rng DWORD LENGTHOF arr ; The complete length of the array. .code main PROC mov eax, len ; Moves

How can I make .querySelectorAll() or .forEach() work in Firefox?

匿名 (未验证) 提交于 2019-12-03 09:02:45
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试): 问题: I want to remove all elements with class sample . This is working well in Chrome and Safari: document.querySelectorAll('.sample').forEach(function(e) { e.parentNode.removeChild(e); }); Here is the error I get in Firefox: TypeError: document.querySelectorAll(...).forEach is not a function 回答1: document.querySelectorAll returns a NodeList which is indexed like an array, but not an Array so you can't call the array methods on it. You can use Array.from(nodeList) in ES6 or Array.prototype.slice.call(nodeList) for ES5 Array.from(document