JavaScript_Succinctly

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The Story behind the Succinctly Series of Books S taying on the cutting edge Daniel Jebaraj, Vice President Syncfusion, Inc. As many of you may know, Syncfusion is a provider of software components for the Microsoft platform. This puts us in the exciting but challenging position of always being on the cutting edge. Whenever platforms or tools are shipping out of Microsoft, which seems to be about every other week these days, we have to educate ourselves, quickly. Information is plentiful but harder to digest In reality, this translates into a lot of book orders, blog searches, and Twitter scans. While more information is becoming available on the Internet and more and more books are being published, even on topics that are relatively new, one aspect that continues to inhibit us is the inability to find concise technology overview books. We are usually faced with two options: read several 500+ page books or scour the web for relevant blog posts and other articles. Just as everyone else who has a job to do and customers to serve, we find this quite frustrating. The Succinctly series This frustration translated into a deep desire to produce a series of concise technical books that would be targeted at developers working on the Microsoft platform. We firmly believe, given the background knowledge such developers have, that most topics can be translated into books that are between 50 and 100 pages. This is exactly what we resolved to accomplish with the Succinctly series. Isn’t everything wonderful born out of a deep desire to change things for the better? The best authors, the best content Each author was carefully chosen from a pool of talented experts who shared our vision. The book you now hold in your hands, and the others available in this series, are a result of the authors’ tireless work. You will find original content that is guaranteed to get you up and running in about the time it takes to drink a few cups of coffee. Free forever Syncfusion will be working to produce books on several topics. The books will always be free. Any updates we publish will also be free. 8
Free? What is the catch? There is no catch here. Syncfusion has a vested interest in this effort. As a component vendor, our unique claim has always been that we offer deeper and broader frameworks than anyone else on the market. Developer education greatly helps us market and sell against competing vendors who promise to “enable AJAX support with one click,” or “turn the moon to cheese!” Let us know what you think If you have any topics of interest, thoughts, or feedback, please feel free to send them to us at succinctly-series@syncfusion.com. We sincerely hope you enjoy reading this book and that it helps you better understand the topic of study. Thank you for reading. Please follow us on Twitter and “Like” us on Facebook to help us spread the word about the Succinctly series! 9
Page 2 and 3: By Cody Lindley Foreword by Daniel
Page 4 and 5: Table of Contents About the Author
Page 6 and 7: Object() object instance properties
Page 10 and 11: About the Author Cody Lindley is a
Page 12 and 13: Advanced technical books written ab
Page 14 and 15: “Consider that the cody object cr
Page 16 and 17: Chapter 1 JavaScript Objects Creati
Page 18 and 19: Using JavaScript, the getGender met
Page 20 and 21: * The String() constructor function
Page 22 and 23: new object that is returned from th
Page 24 and 25: Notes The Math object is the oddbal
Page 26 and 27: In this snippet, we created a new s
Page 28 and 29: Verify that literals are created fr
Page 30 and 31: The primitive values null, undefine
Page 32 and 33: The concept to take away here is th
Page 34 and 35: * This will throw an error and not
Page 36 and 37: copied, but not the actual value. T
Page 38 and 39: Sample: sample21.html // Primitive
Page 40 and 41: Notes Careful! If you mutate the na
Page 42 and 43: console.log(instanceOfCustomObject.
Page 44 and 45: myObject.prop = 'test'; myArray.pro
Page 46 and 47: Chapter 2 Working with Objects and
Page 48 and 49: Sample: sample31.html // Encapsula
Page 50 and 51: cody['getGender']() // Just slap th
Page 52 and 53: een defined. You might think that b
Page 54 and 55: console.log(myArray.toLocaleString(
Page 56 and 57: Sample: sample44.html var cody = {
Page 58 and 59:
Sometimes a web browser manufacture
Page 60 and 61:
I like this library because it take
Page 62 and 63:
console.log(stringObject); // Logs
Page 64 and 65:
Chapter 4 Number() Conceptual overv
Page 66 and 67:
NEGATIVE_INFINITY POSITIVE_INFINIT
Page 68 and 69:
Parameter passed to Boolean() = Mat
Page 70 and 71:
console.log(Boolean(Math)); console
Page 72 and 73:
var numberObject = new Number(1.100
Page 74 and 75:
Chapter 7 Null Conceptual overview
Page 76 and 77:
Chapter 8 Undefined Conceptual over
Page 78 and 79:
Chapter 9 The Head/Global Object Co
Page 80 and 81:
object. } // Logs bar, foo's value
Page 82 and 83:
Make sure you understand that the h
Page 84 and 85:
Object() parameters The Object() co
Page 86 and 87:
Sample: sample72.html var cody = n
Page 88 and 89:
Logs 'foo', being found at Object.p
Page 90 and 91:
Sample: sample77.html var addFunct
Page 92 and 93:
Sample: sample79.html var yelp = f
Page 94 and 95:
parameters when defining the functi
Page 96 and 97:
Notes The arguments.length property
Page 98 and 99:
Invoking a function (function, meth
Page 100 and 101:
Self-invoking anonymous function st
Page 102 and 103:
the bar variable. All this is to sh
Page 104 and 105:
Chapter 12 The this Keyword Concept
Page 106 and 107:
Clearly, the value of this is based
Page 108 and 109:
Working around the nested function
Page 110 and 111:
What you need to learn here is that
Page 112 and 113:
var john = new Person(); // No argu
Page 114 and 115:
Notes An unlimited number of functi
Page 116 and 117:
} (); How is the value of sayHiTex
Page 118 and 119:
var parentFunction = function () {
Page 120 and 121:
Chapter 14 Function Prototype Prope
Page 122 and 123:
Sample: sample119.html var myFunct
Page 124 and 125:
In this example, the foo property i
Page 126 and 127:
console.log(FooInstance.constructor
Page 128 and 129:
Providing a new object as the proto
Page 130 and 131:
var chuck = new Person(0, 0); conso
Page 132 and 133:
An Array() is just a special type o
Page 134 and 135:
It is more common to see an array d
Page 136 and 137:
console.log(myArray.length); // Log
Page 138 and 139:
while (myArrayLength--) { // If len
Page 140 and 141:
ceil() cos() exp() floor() log() ma
Page 142 and 143:
That is: a complex value is equal t
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JavaScript_Succinctly

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