Pipeline Method

Object-oriented alternative to the pipeline operator.

Setup

Add the minified or original script to your project in any convenient way. The script must be invoked before usages of the method.

Usage

The script extends standard Object prototype with method pipe.

There are cases when you have to break your method chain in order to pass the result to a method of other object:

    const result = array
        .map(el => { /*code*/ })
        .filter(el => { /*code*/ });
    
    Array.from(new Set(result)) // remove non-unique elements

using the pipeline method you can continue chaining with a pipeline:

    array
        .map(el => { /*code*/ })
        .filter(el => { /*code*/ })
        .pipe(array => new Set(array))
        .pipe(Array.from)

Method description

Object.pipe(fn, ...args?)

• fn - a Function to which target object will be passed as the first argument
• args (optional) - Array of arguments which will be passed to the function after the first argument

Notice, that, unlike the pipeline operator, pipeline method cannot be called on null and undefined values. The reason for this is that these types has no corresponding object wrappers.

More examples

Output element found in array

    array
        .find(el => el.isToBeFound)
        .pipe(console.log)

Get all links from document

    document
        .querySelectorAll('a')
        .pipe(Array.from)
        .map(a => a.href)

Create a map from an array

    array
        .map(el => [el.name, el.value])
        .pipe((pairs) => new Map(pairs))