While other functions like Select and Where aren’t used in the same way although they are in LINQ. Several Underscore functions are almost identical in operation to LINQ, such as Any and, All and SortBy ( OrderBy). Because Underscore generally returns array values rather than an object it doesn’t provide method chaining by default, instead a special chain function must be called to wrap the results in a chainable API. While LINQ generally returns an IEnumerable, Underscore will simply return the results as an array or array of objects. Underscore shares with LINQ an ability to iterate through a dataset and produce equivalent results but it is implemented in a very different way. Using underscore is as simple as adding the JavaScript file to your project and referencing it on the page.Īrticles. Underscore provides many useful functions for working with arrays or collections of JavaScript objects, including filtering, sorting and querying. Underscore is an open source functional programming utility library for JavaScript. Underscore.js allows you to work in JavaScript with arrays and object-collections in a similar way to LINQ, but how similar? Let’s look at this in a bit more detail. If you are already familiar with LINQ with C#, then it would help to be able to use a similar syntax with client-side data access. If you don’t have a good understanding of JavaScript, the transition from writing server side C# to JavaScript can be challenging. To be able to work with data on the client-side, you need to be comfortable with writing JavaScript. Users now expect the sort of fast and fluid web pages that require client side processing. Unfortunately, server-side data is no longer enough.

LINQ makes short work of iterative functions by means of a simple syntax that is easy to read and understand.

When working with server-side data in web-based applications, LINQ is an invaluable time saver.

When LINQ was added to C# in ASP.Net 3.0, it changed the way that we work with data collections.

Underscore js