object

问题 Got a bit of a puzzle here...I want to loop through allItems and return allItems but replace with any newItems that matches its id. How can I look for a match on id and then replace it with the correct object into the array? const allItems = [ { 'id': 1, 'category_id': 1, 'text': 'old', }, { 'id': 2, 'category_id': 1, 'text': 'old' } ] const newItems = [ { 'id': 1, 'category_id': 1, 'text': 'new', 'more_info': 'abcd' }, { 'id': 2, 'category_id': 1, 'text': 'new', 'more_info': 'abcd' } ] What

问题 Got a bit of a puzzle here...I want to loop through allItems and return allItems but replace with any newItems that matches its id. How can I look for a match on id and then replace it with the correct object into the array? const allItems = [ { 'id': 1, 'category_id': 1, 'text': 'old', }, { 'id': 2, 'category_id': 1, 'text': 'old' } ] const newItems = [ { 'id': 1, 'category_id': 1, 'text': 'new', 'more_info': 'abcd' }, { 'id': 2, 'category_id': 1, 'text': 'new', 'more_info': 'abcd' } ] What

问题 How do i return an object key name only if the value of it is true? I'm using underscore and the only thing i see is how to return keys which is easy, i want to avoid redundant iterations as much as possible: example: Object {1001: true, 1002: false} I want an array with only 1001 in it... 回答1: Object.keys gets the keys from the object, then you can filter the keys based on the values var obj = {1001: true, 1002: false}; var keys = Object.keys(obj); var filtered = keys.filter(function(key) {

问题 In many languages you can create an object without creating a data type, and add properties to that object. For example in JS or AS: var myObject = {}; myObject.myParameter = "hello world"; Or you can create structures in C and C++. Is it possible to do that in C#? 回答1: Yes there is ExpandoObject under System.Dynamic namespace.You could add properties on the fly like you do in other dynamic languages dynamic dynObject = new ExpandoObject(); dynObject.someProperty= "Value"; http://msdn

问题 In many languages you can create an object without creating a data type, and add properties to that object. For example in JS or AS: var myObject = {}; myObject.myParameter = "hello world"; Or you can create structures in C and C++. Is it possible to do that in C#? 回答1: Yes there is ExpandoObject under System.Dynamic namespace.You could add properties on the fly like you do in other dynamic languages dynamic dynObject = new ExpandoObject(); dynObject.someProperty= "Value"; http://msdn

问题 I have pointer object to singleton class. Thread 1: Currently executing a member function of the above said object. Thread 2: Deletes the above object when the object's member function is still being executed by Thread 1. What happens to Thread 1 where the member function is being executed? Whether the execution will be stopped midway? 回答1: It is probably undefined behavior, unless you are extra careful. Deleting the object while your thread accesses it in an unordered (non-synchronized,

问题 I've spent some time looking for some alternative to handle generic objects, I've seen questions similar to mine, but not as specific I suppose? Protocol buffers has multiple scalar types that I can use, however they are mostly primitive. I want my message to be flexible and be able to have a field that is a List of some sort. Let's say my .proto file looked like this: message SomeMessage { string datetime = 1; message inputData // This would be a list { repeated Object object = 1; } message

问题 EDIT: Thanks everyone. I didn't even notice it was private lol, so I changed them from private to public, now it should be accessible... question now is how can I access the value of say 'backpackPosition'? thanks again! TF2Inventory Object ( [fetchDate] => 123456123 [items] => Array ( [60] => TF2Item Object ( [equipped] => Array ( [scout] => 1 [sniper] => 1 [soldier] => 1 [demoman] => 1 [medic] => 1 [heavy] => 1 [pyro] => 1 [spy] => 1 ) [attributes] => Array ( [0] => stdClass Object ( [name]

问题 I am implementing a list class with node and iterator, that creates a list of type Ticket, which is an object that i have defined in a class, but when i try to compile it says that there is no default constructor for List when there clearly is. Does anyone see the issue here? This is the class definition class List : public Ticket { public: List(); void tick_print(vector<Ticket*> halfticks, int i); void push_back(Ticket* data); void insert(Iterator iter, Ticket* s); Iterator erase(Iterator

问题 It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical and cannot be reasonably answered in its current form. For help clarifying this question so that it can be reopened, visit the help center. Closed 7 years ago . I need to create a list array in java that can hold three different objects (Surname, forename, Result) and was wondering how to do that 回答1: The best and also Object Oriented approach is to Create a class with