Browse Library
Sign In Start Free Trial
Close icon Search icon
Account
Browse Library Sign In Start Free Trial

Add to playlist

Create a Playlist

Modal Close icon
You need to login to use this feature.
  • Book Overview & Buying Learning UnderscoreJS
  • Table Of Contents Toc
Learning UnderscoreJS

Learning UnderscoreJS

By : Alexandru Vasile Pop
4.6 (5)
Buy this Book
close
close
Learning UnderscoreJS

Learning UnderscoreJS

4.6 (5)
By: Alexandru Vasile Pop
Buy this Book

Overview of this book

Underscore.js is one of the most popular modern JavaScript libraries used for functional programming. It can be used as a base for building complex JavaScript applications in a sustainable manner and for building other JavaScript libraries. It embraces functional programming principles but is not opinionated and can be used with imperative, object-oriented, functional, or other programming styles. This book explores how to use Underscore.js to power your code and understand modern JavaScript development concepts while applying a lightweight and efficient workflow to build applications. The book starts with an incremental Underscore.js introduction by exploring key JavaScript concepts. You will then explore the basic features of Underscore.js in action and establish a lightweight development workflow that allows the provided examples to be guided by tests. The book then covers the functionality of Underscore.js with in-depth examples and explanations for understanding and applying the Underscore.js API. You'll also learn how to use Underscore.js as a base for your own modules and libraries within an object-oriented or functional programming style, and will be able to explore Underscore.js use cases in different environments. Eventually, you'll learn about libraries that are closely related with Underscore.js, how to share code between client and server, and how to prepare for the upcoming JavaScript standard ECMAScript 6.
Table of Contents (9 chapters)
close
close
close
Preface
chevron up
Icon
Preface
Icon
What this book covers
Icon
What you need for this book
Icon
Who this book is for
Icon
Conventions
Icon
Reader feedback
Icon
Customer support
Lock Free Chapter
1
1. Getting Started with Underscore.js
Icon
1. Getting Started with Underscore.js
Icon
Why Underscore
Icon
Getting started with Underscore by example
Icon
Key Underscore functions
Icon
Functional programming fundamentals
Icon
Useful patterns and practices for JavaScript applications targeting ECMAScript 5
Icon
Setting up a development workflow for exploring Underscore
Icon
Testing JavaScript code with Jasmine
Icon
Summary
2
2. Using Underscore.js with Collections
Icon
2. Using Underscore.js with Collections
Icon
Key Underscore functions revisited – each, map, and reduce
Icon
Searching and filtering
Icon
Aggregations and transformations
Icon
Other collection-based functions
Icon
Summary
3
3. Using Underscore.js with Arrays, Objects, and Functions
Icon
3. Using Underscore.js with Arrays, Objects, and Functions
Icon
Arrays
Icon
Objects
Icon
Functions
Icon
Utility functions
Icon
Summary
4
4. Programming Paradigms with Underscore.js
Icon
4. Programming Paradigms with Underscore.js
Icon
The object-oriented programming paradigm
Icon
The functional programming paradigm
Icon
Migrating to a functional programming style
Icon
Functional programming with Underscore.js
Icon
Summary
5
5. Using Underscore.js in the Browser, on the Server, and with the Database
Icon
5. Using Underscore.js in the Browser, on the Server, and with the Database
Icon
Using Underscore in the browser
Icon
Enhancing examples output with Bootstrap
Icon
Using Underscore on the server with Node.js
Icon
Using Underscore with MongoDB
Icon
Using Underscore with PostgreSQL
Icon
Summary
6
6. Related Underscore.js Libraries and ECMAScript Standards
Icon
6. Related Underscore.js Libraries and ECMAScript Standards
Icon
Using the Underscore-contrib library
Icon
Using the lodash library
Icon
Underscore and JavaScript standards
Icon
Summary
7
7. Underscore.js Build Automation and Code Reusability
Icon
7. Underscore.js Build Automation and Code Reusability
Icon
Build automation with Gulp
Icon
Reusing code based on Underscore between client and server
Icon
Adding ECMAScript 2015 (ES6) support to Browserify
Icon
Summary
8
Index
Icon
Index

Conventions

In this book, you will find a number of text styles that distinguish between different kinds of information. Here are some examples of these styles and an explanation of their meaning.

Code words in text, database table names, folder names, filenames, file extensions, pathnames, dummy URLs, user input, and Twitter handles are shown as follows: "We just need to open the SpecRunner.html file in a browser and we should see this output."

A block of code is set as follows:

var peopleWithAwardAge = _.map(people, function(person){
  return {
    name: person.name,
    awardAge: person.awardYear - person.birthYear
  }
});

When we wish to draw your attention to a particular part of a code block, the relevant lines or items are set in bold:

var peopleWithAwardAge = _.map(people, function(person){
  return {
    name: person.name,
    awardAge: person.awardYear - person.birthYear
  }
});

Any command-line input or output is written as follows:

npm install -g bower

New terms and important words are shown in bold. Words that you see on the screen, for example, in menus or dialog boxes, appear in the text like this: "Executing the following line in a Command Prompt with administrator privileges (opened using the Run as administrator option)."

Note

Warnings or important notes appear in a box like this.

Tip

Tips and tricks appear like this.

CONTINUE READING
83
Tech Concepts
36
Programming languages
73
Tech Tools
Icon Unlimited access to the largest independent learning library in tech of over 8,000 expert-authored tech books and videos.
Icon Innovative learning tools, including AI book assistants, code context explainers, and text-to-speech.
Icon 50+ new titles added per month and exclusive early access to books as they are being written.
Learning UnderscoreJS
Next Section
notes
bookmark Notes and Bookmarks search Search in title playlist Add to playlist font-size Font size

Change the font size

margin-width Margin width

Change margin width

day-mode Day/Sepia/Night Modes

Change background colour

Close icon Search
Country selected
Close icon Your notes and bookmarks

Confirmation

Modal Close icon
claim successful
Order Page Read Now

Buy this book with your credits?

Modal Close icon
Are you sure you want to buy this book with one of your credits?
Close
YES, BUY

Submit Your Feedback

Modal Close icon
Modal Close icon
Modal Close icon