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  • Book Overview & Buying The JavaScript Workshop
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The JavaScript Workshop

The JavaScript Workshop

By : Joseph Labrecque, Jahred Love , Daniel Rosenbaum , Nick Turner , Gaurav Mehla , Alonzo L. Hosford , Florian Sloot , Philip Kirkbride
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The JavaScript Workshop

The JavaScript Workshop

4 (8)
By: Joseph Labrecque, Jahred Love , Daniel Rosenbaum , Nick Turner , Gaurav Mehla , Alonzo L. Hosford , Florian Sloot , Philip Kirkbride

Overview of this book

If you're looking for a programming language to develop flexible and efficient apps, JavaScript is a great choice. However, while offering real benefits, the complexity of the entire JavaScript ecosystem can be overwhelming. This Workshop is a smarter way to learn JavaScript. It is specifically designed to cut through the noise and help build your JavaScript skills from scratch, while sparking your interest with engaging activities and clear explanations. Starting with explanations of JavaScript's fundamental programming concepts, this book will introduce the key tools, libraries and frameworks that programmers use in everyday development. You will then move on and see how to handle data, control the flow of information in an application, and create custom events. You'll explore the differences between client-side and server-side JavaScript, and expand your knowledge further by studying the different JavaScript development paradigms, including object-oriented and functional programming. By the end of this JavaScript book, you'll have the confidence and skills to tackle real-world JavaScript development problems that reflect the emerging requirements of the modern web.
Table of Contents (17 chapters)
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Currying Functions

Currying is taking a function with multiple arguments and breaking it down into one or more additional functions that take just one argument and eventually resolve to a value. The initial function call does not take all the arguments but returns a function whose input is the remaining arguments and whose output is the intended result for all the arguments.

That was a mouthful, so let's look at an example. Say you have a simple sum function:

function sum(a, b) {
    return a + b;
}

Let's express this as a curried function in arrow notation:

const sum = a => b => a + b;

Notice that we have two levels of functions here, and each function takes one parameter. The first function takes one parameter, a, and returns another function, which takes the second parameter, b.

Note

If you are having trouble seeing the two function levels, here's an equivalent that may help:

function sum(a) {

  ...

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The JavaScript Workshop
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