object

问题 "How to iterate through CSV data from PowerShell ?" would perhaps be an alternate question title. This output is fine: PS /home/nicholas> PS /home/nicholas> $flat Date Region New_Tests Total_Tests Positivity Turn_Around ---- ------ --------- ----------- ---------- ----------- 2020-01-23 BC 2 2 0 32 2020-01-23 Fraser 0 0 0 0 2020-01-23 Interior 0 0 0 0 2020-01-23 Northern 0 0 0 0 2020-01-23 Unknown 0 0 0 0 2020-01-23 Vancouver Coastal 2 2 0 32 2020-01-23 Vancouver Island 0 0 0 0 .. but I'd be

问题 "How to iterate through CSV data from PowerShell ?" would perhaps be an alternate question title. This output is fine: PS /home/nicholas> PS /home/nicholas> $flat Date Region New_Tests Total_Tests Positivity Turn_Around ---- ------ --------- ----------- ---------- ----------- 2020-01-23 BC 2 2 0 32 2020-01-23 Fraser 0 0 0 0 2020-01-23 Interior 0 0 0 0 2020-01-23 Northern 0 0 0 0 2020-01-23 Unknown 0 0 0 0 2020-01-23 Vancouver Coastal 2 2 0 32 2020-01-23 Vancouver Island 0 0 0 0 .. but I'd be

问题 Hi i have a situation where i want to convert array of object into array of array here is my targeted array of objects which looks like this (32) [Object, Object, Object, Object, Object, Object, Object, Object, Object, Object, Object, Object, Object, Object, Object, Object, Object, Object, Object, Object, Object, Object, Object, Object, Object, Object, Object, Object, Object, Object, Object, Object]0: Object1: Object2: Object3: Object4: Object5: Object6: Object7: Object8: Object9: Object10:

问题 Assume I have two Classes public class TestA{ TestB testB; String text; SecondTest secondTest; . . . } public class TestB{ int a; int b; } Now I have a List with TestB List<TestB> list1 If I want to sort the list I can do something like this: list1.sort(Comparator.comparing(TestB::getA) But what if I have a List with TestA List<TestA> list2 How I sort to a or b (TestB)? 回答1: That's an interesting question. I don't know of any Java "native" solution for this kind of deep comparison. But one

问题 I'm trying to conduct a certain a calculation using purrr::map2() taking two different arguments. purrr::map2( .x = c(1, 3), .y = c(10, 20), function(.x, .y)rnorm(1, .x, .y) ) purrr::map2() returns a list, but I want to assign a distinct object name to each content within the list. For example, I want to name the first list [[1]] [1] -5.962716 as model1 and [[2]] [1] -29.58825 as model2 . In other words, I'd like to automate the object naming like model* <- purrr::map2[[*]] . Would anybody

问题 I am using a JavaScript object as a dictionary, and wanted to make keys case-insensitive. I used Object.defineProperty() to implement this: Object.defineProperty(Object.prototype, "getKeyUpperCase", { value: function(prop) { for (var key in this) { if (key.toUpperCase() === prop.toUpperCase()) { return this[key]; }; }; }, enumerable: false }); What is the time complexity of searching an object via key in JavaScript? I'm expecting the dictionary to hold around 1 million keys. To me it looks

问题 I have several NSViews that trigger re-draws during the mouseEntered and mouseExited methods. When showing an NSMenu in the same window, updating of those NSViews is suspended (they don't get the mouseEntered and Exited events). My problem is that once the NSMenu is closed (after moving the mouse all over the window outside of the NSMenu), every mouseEntered and Exited event that would have been triggered immediately trigger in a fast sequence. So basically they were queueing up and then

问题 I am creating reusable table component which will enable editing of objects fields to prepare them for sending to the API. Having an object: person: { name: "John" job: { type: "IT" title: "Software Engineer" } } I would like to pass the object nested field to a component and edit. F.e: <edit-field [field]="person.job.title"></edit-field> Which results in an input field that edits exactly the title field in original object. The problem is that person.job.title is a string, not and object or

问题 I wanted to call a function when all required images are loaded. The number of images is known in advance, so I tried attaching a function call to the onload event of each image and count the number of times it was called. <html> <head> <script> var tractor; function Tractor() { this.init_graphics(); } Tractor.prototype.init_graphics = function() { this.gr_max = 3; this.load_count = 0; this.loading_complete(); // #1 test call, works OK this.img1 = new Image(); this.img1.onload = this.loading

问题 I'm still learning JS and something is harder to understand than others. Like so: I am trying to change the theme of google maps by allowing users to click on a custom button. I was using if else which works great but i wanted to add more themes and using a loop. Each time a user clicks, it selects: object key 0, then click again object key 2 and object key 3 and repeat I can get the object keys and values how I'm lost after that. This is the theme object let theme = { default: null, night: