大约有 19,600 项符合查询结果(耗时:0.0349秒) [XML]

https://stackoverflow.com/ques... 

javascript find and remove object in array based on key value

I have been trying several approaches on how to find an object in an array, where ID = var, and if found, remove the object from the array and return the new array of objects. ...
https://stackoverflow.com/ques... 

Simultaneously merge multiple data.frames in a list

...using the tidyverse packages. For comparison purposes below, you'll find a base R version using the same sample dataset. 1) Join them with reduce from the purrr package: The purrr package provides a reduce function which has a concise syntax: library(tidyverse) list(x, y, z) %>% reduce(left_...
https://stackoverflow.com/ques... 

The type must be a reference type in order to use it as parameter 'T' in the generic type or method

...or sure without a repro example): public class Derived<SomeModel> : Base<SomeModel> where SomeModel : class, IModel ^^^^^ see this bit ...
https://stackoverflow.com/ques... 

Break promise chain and call a function based on the step in the chain where it is broken (rejected)

...then(stepTwo).then(null, handleErrorOne) Angular's promise library $q is based on kriskowal's Q library (which has a richer API, but contains everything you can find in $q). Q's API docs on GitHub could prove useful. Q implements the Promises/A+ spec, which goes into detail on how then and the pro...
https://stackoverflow.com/ques... 

When should static_cast, dynamic_cast, const_cast and reinterpret_cast be used?

...inheritance hierarchies. It is unnecessary when casting upwards (towards a base class), but when casting downwards it can be used as long as it doesn't cast through virtual inheritance. It does not do checking, however, and it is undefined behavior to static_cast down a hierarchy to a type that isn'...
https://stackoverflow.com/ques... 

ObservableCollection not noticing when Item in it changes (even with INotifyPropertyChanged)

...llectionChanged event firing. public class CollectionViewModel : ViewModelBase { public ObservableCollection<EntityViewModel> ContentList { get { return _contentList; } } public CollectionViewModel() { _contentList = new ObservableCollection<...
https://stackoverflow.com/ques... 

Jquery insert new row into table at a certain index

...$('#my_table > tbody > tr').eq(i-1).after(html); The indexes are 0 based, so to be the 4th row, you need i-1, since .eq(3) would be the 4th row, you need to go back to the 3rd row (2) and insert .after() that. share ...
https://stackoverflow.com/ques... 

Compression/Decompression string with C#

...yte[], while Unzip returns a string. If you want a string from Zip you can Base64 encode it (for example by using Convert.ToBase64String(r1)) (the result of Zip is VERY binary! It isn't something you can print to the screen or write directly in an XML) The version suggested is for .NET 2.0, for .NE...
https://stackoverflow.com/ques... 

Rename multiple files based on pattern in Unix

There are multiple files in a directory that begin with prefix fgh , for example: 22 Answers ...
https://stackoverflow.com/ques... 

How to use http.client in Node.js if there is basic authorization

...c in this case and the username:password combination which gets encoded in Base64: var username = 'Test'; var password = '123'; var auth = 'Basic ' + Buffer.from(username + ':' + password).toString('base64'); // new Buffer() is deprecated from v6 // auth is: 'Basic VGVzdDoxMjM=' var header = {'Ho...