Tuesday 25 August 2015

Javascript Object oriented Main Concepts

graphiceye 00:20  , , , ,  No comments

Javascript Object oriented Main Concepts

Create Global Namespace


var Myns= Myns|| {};
 
 
MYAPP.commonMethod = {
  regExForName: "", 
  regExForPhone: "", 
  validateName: function(name){
    
    
  },
 
  validatePhoneNo: function(phoneNo){
    // do with number
  }
}

// Object together with the method declarations
MYAPP.event = {
    addListener: function(el, type, fn) {
    // code stuff
    },
    removeListener: function(el, type, fn) {
    // code stuff
    },
    getEvent: function(e) {
    // code stuff
    }
  
    // Can add another method and properties
}

// Syntax for Using addListener method:
MYAPP.event.addListener("anynm", "type", callback);
 

Monday 24 August 2015

How to get Javascript microphone audio level peaks

graphiceye 00:45  ,  No comments



How to get audio in javascript


Allow Audio


Javascript example of get audio peaks from microphone

this is a simple audio api peaks demo when user input on mic its upperlevel  increase 

mic must require

Saturday 22 August 2015

How to use for each loop in javascript

graphiceye 00:04  , , ,  No comments

 

 

How to use javascript each with array:

Javascript how to use for each loop with array:

 
var a = ["a", "b", "c"];
a.forEach(function(entry) {
 
    alert(entry);
 
});
 

Friday 21 August 2015

how to Start and Stop marquee

graphiceye 23:41  , , , ,  No comments


 

Javascript Start - Stop Functions

How to start and stop marquee

Javascript:start();

Javascript:stop(); 

  Mouse over on scrolling text

Scrolling text Scrolling text Scrolling text Scrolling text

Wednesday 19 August 2015

How to vibrate mobile using javascript

graphiceye 03:58  , ,  No comments

Javascript mobile vibrate

 
 if ("vibrate" in navigator) {
 // vibration API supported
}
 
navigator.vibrate([500, 300, 100]);  for pattern vibrate
 
navigator.vibrate(200);  for single Milli seconds
 
 
 
 




 
  
 
 
 

How to make PDF using javascript

graphiceye 02:29  , ,  No comments

 

How to make PDF using javascript 

 

<!DOCTYPE html>
<html>
  <body>
    <p id="notprint">don't print this in pdf file</p>
    <div>
<p><font size="3" color="red">print this to pdf</font></p>
    </div>
  </body>
</html>

 

  • jspdf.js

  • jspdf.plugin.from_html.js

  • jspdf.plugin.split_text_to_size.js

  • jspdf.plugin.standard_fonts_metrics.js

this all above files for reference in head tag 



var doc = new jsPDF();          
var elementHandler = {
  '#notprint': function (element, renderer) {
    return true;
  }
};
var source = window.document.getElementsByTagName("body")[0];
doc.fromHTML(
    source,
    15,
    15,
    {
      'width': 180,'elementHandlers': elementHandler
    });

doc.output("dataurlnewwindow");

Monday 17 August 2015

Javascript Object Method

graphiceye 03:19  , , , ,  No comments

Object Methods

In addition to properties, objects can have methods. An object’s method is a function it can perform. Let’s take a look at this example. For this one, let’s create a Circle object. First, we’re going to have to define our functions, and then make them methods of our Circle object. Let’s define our Circle() constructor and a Circle object or two:

function Circle(radius){  

  this.radius = radius;  

}  

  

var bigCircle = new Circle(100);  

var smallCircle = new Circle(2);

Javascript simple object image

graphiceye 03:14  , , ,  No comments

Javascript Object

An object is a collection of properties. These properties can either be primitive data types, other objects, or functions (which in this case are called methods, but more on this later). A constructor function (or simply, constructor) is a function used to create an object – this too we’ll discuss in detail later. JavaScript comes with many built-in objects, such as the Array, Image, and Date objects. Many of you are familiar with Image objects from creating those ever-so-cute rollover effects. Well, when you use the code


var Image1 = new Image();  

Image1.src = "xyz.gif";

Make Object In javascript

graphiceye 03:06  , , ,  No comments

Let's Create an Object In Javascript

function jobj(){
};

Defining Methods and Properties

function jobj(){
    this.nm= 'an object';
    this.do = function(){
        alert('my name ' + this.nm);
    };
};

 

 

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