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Remove all elements contained in another array
...d for computing the different elements of two arrays:
const myArray = new Set(['a', 'b', 'c', 'd', 'e', 'f', 'g']);
const toRemove = new Set(['b', 'c', 'g']);
const difference = new Set([...myArray].filter((x) => !toRemove.has(x)));
console.log(Array.from(difference)); // ["a", "d", "...
How to ignore a property in class if null, using json.net
...
As per James Newton King: If you create the serializer yourself rather than using JavaScriptConvert there is a NullValueHandling property which you can set to ignore.
Here's a sample:
JsonSerializer _jsonWriter = new JsonSerializer {
...
Android-java- How to sort a list of objects by a certain value within the object
...t {
public static void main(String args[]){
ToSort toSort1 = new ToSort(new Float(3), "3");
ToSort toSort2 = new ToSort(new Float(6), "6");
ToSort toSort3 = new ToSort(new Float(9), "9");
ToSort toSort4 = new ToSort(new Float(1), "1");
ToSort toSort5 = n...
Python Dictionary Comprehension
...ork quite the way you're trying. Like a list comprehension, they create a new dictionary; you can't use them to add keys to an existing dictionary. Also, you have to specify the keys and values, although of course you can specify a dummy value if you like.
>>> d = {n: n**2 for n in range...
ASP.NET MVC controller actions that return JSON or partial html
...JSON to your page.
public ActionResult SomeActionMethod() {
return Json(new {foo="bar", baz="Blech"});
}
Then just call the action method using Ajax. You could use one of the helper methods from the ViewPage such as
<%= Ajax.ActionLink("SomeActionMethod", new AjaxOptions {OnSuccess="someme...
Should programmers use SSIS, and if so, why? [closed]
...s stregnth is.
The old name (DTS, Data Transformation Services) and the new name (SSIS, Sql Server Integration Services) both make clear it's a service (or set of services) designed to manipulate data to integrate the SQL Server database into larger processes.
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Is it possible to update a localized storyboard's strings?
...board and 3 string files for it. It was a month ago and after that I added new view controller to app, but this controller's buttons and labels not appear in string files
...
Selenium wait until document is ready
...hwjp Care to elaborate more? The JavaDocs say otherwise: "If this causes a new page to load, this method will attempt to block until the page has loaded."
– Petr Janeček
Sep 3 '14 at 19:12
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Possibility of duplicate Mongo ObjectId's being generated in two different collections?
...sert.php : "Note: If the parameter does not have an _id key or property, a new MongoId instance will be created and assigned to it. This special behavior does not mean that the parameter is passed by reference.", it's a feature, not a bug, it's meant to be that way
– Oliver Ko...
Hidden features of Eclipse [closed]
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Ctrl-2 something
Seems that nobody mentioned Ctrl-2 L (assign to new local variable) and Ctrl-2 F (assign to a new field), these ones have changed how I write code.
Previously, I was typing, say (| is cursor location):
Display display = new |
and then I pushed Ctrl-Space to complete th...