JavaScript_Succinctly

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while (myArrayLength--) { // If length is not zero, loop and subtract 1. console.log(myArray[myArrayLength]); // Logs 'red', 'orange', 'green', 'blue'. } If you are wondering why I am not showing for loops here, it is because while loops have fewer moving parts and I believe they are easier to read. 138
Chapter 16 Math Function Conceptual overview of the built-in Math object The Math object contains static properties and methods for mathematically dealing with numbers or providing mathematical constants (e.g., Math.PI;). This object is built into <strong>JavaScript</strong>, as opposed to being based on a Math() constructor that creates math instances. Notes It might seem odd that Math starts with a capitalized letter since you do not instantiate an instance of a Math object. Do not be thrown off by this. Simply be aware that <strong>JavaScript</strong> sets this object up for you. Math properties and methods The Math object has the following properties and methods: Properties (e.g., Math.PI;): E LN2 LN10 LOG2E LOG10E PI SQRT1_2 SQRT2 Methods (e.g., Math.random();): abs() acos() asin() atan() atan2() 139
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By Cody Lindley Foreword by Daniel
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Table of Contents About the Author
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Object() object instance properties
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The Story behind the Succinctly Ser
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About the Author Cody Lindley is a
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Advanced technical books written ab
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“Consider that the cody object cr
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Chapter 1 JavaScript Objects Creati
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Using JavaScript, the getGender met
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* The String() constructor function
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new object that is returned from th
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Notes The Math object is the oddbal
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In this snippet, we created a new s
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Verify that literals are created fr
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The primitive values null, undefine
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The concept to take away here is th
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* This will throw an error and not
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copied, but not the actual value. T
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Sample: sample21.html // Primitive
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Notes Careful! If you mutate the na
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console.log(instanceOfCustomObject.
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myObject.prop = 'test'; myArray.pro
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Chapter 2 Working with Objects and
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Sample: sample31.html // Encapsula
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cody['getGender']() // Just slap th
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een defined. You might think that b
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console.log(myArray.toLocaleString(
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Sample: sample44.html var cody = {
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Sometimes a web browser manufacture
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I like this library because it take
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console.log(stringObject); // Logs
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Chapter 4 Number() Conceptual overv
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NEGATIVE_INFINITY POSITIVE_INFINIT
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Parameter passed to Boolean() = Mat
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console.log(Boolean(Math)); console
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var numberObject = new Number(1.100
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Chapter 7 Null Conceptual overview
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Chapter 8 Undefined Conceptual over
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Chapter 9 The Head/Global Object Co
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object. } // Logs bar, foo's value
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Make sure you understand that the h
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Object() parameters The Object() co
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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 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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