Beginning JavaScript Charts: With jqPlot, d3, and Highcharts by Fabio Nelli

By Fabio Nelli

Starting JavaScript Charts exhibits tips to convert your facts into attention-grabbing, cutting edge, lively, and hugely interactive browser-based charts. This publication is acceptable for builders of all event degrees and desires: in the event you love speedy and powerful strategies, you should use the jqPlot library to generate charts with awesome results and animations utilizing just a couple of traces of code; if you'd like extra strength and want to create information visualization past conventional charts, then D3 is the JavaScript library for you; eventually, if you would like a high-performance, expert answer for interactive charts, then the Highcharts library can also be covered.

If you're an skilled developer and wish to take issues additional, then starting JavaScript Charts additionally exhibits you the way to improve your personal pix library ranging from scratch utilizing jQuery. on the finish of the ebook, you have got a great wisdom of all of the components had to deal with info from each attainable resource, from high-end medical tools to Arduino forums, from personal home page SQL databases queries to uncomplicated HTML tables, and from Matlab calculations to reviews in Excel. it is possible for you to to supply state of the art charts exploiting the turning out to be energy of contemporary browsers.

* Create all types of charts utilizing the most recent applied sciences to be had on browsers (HTML5, CSS3, jQuery, jqPlot, D3, Highcharts, and SVG)
* packed with step by step examples, starting JavaScript Charts introduces you steadily to all features of chart improvement, from the information resource to the alternative of which way to apply.

This booklet offers a couple of instruments that may be the place to begin for any undertaking requiring graphical representations of knowledge, no matter if utilizing advertisement libraries or your own

What you'll learn

research the jqPlot, D3, Highcharts, CSS, jQuery and SVG basics.
detect the realm of JavaScript photograph libraries.
observe which charts can top characterize your data.
swap from a imaginative and prescient of a chart despatched from a server as a static snapshot to a hugely dynamic one, during which the person is ready to engage in actual time.
practice enter info manipulation to extend chart readability.
strengthen your individual photograph library.

Who this booklet is for

Beginning JavaScript Charts is for builders in any respect degrees attracted to info visualization, and able to include glossy internet criteria and animate and exhibit their info with strong, state of the art applied sciences.

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Extra info for Beginning JavaScript Charts: With jqPlot, d3, and Highcharts

Sample text

Var ans = prompt("Are you sure A You can prompt a user for a text string, then act on that string. 8 You can use a dialog box to query the user and work with the reply. ",""); Here, we’re declaring a variable (as discussed in Chapter 1). We use the var keyword to declare variables. , whatever the user types into the prompt dialog. The prompt() method is passed two pieces of information (officially called parameters), separated by a comma: the question for the user and the default answer. It returns either the user’s response or null; “null” occurs when the user hits Cancel, when there is no default and the user hits OK, or when the user clears the default answer and hits OK.

1 Event Handlers Events are actions that the user performs while visiting your page. Submitting a form and moving a mouse over an image are two examples of events. Event What it handles onabort The user aborted loading the page onblur The user left the object JavaScript deals with events using commands called event handlers. An action by the user on the page triggers an event handler in your script. 1. We deal with other, more advanced event handlers in Chapter 8. onchange The user changed the object onclick The user clicked an object onerror The script encountered an error onfocus The user made an object active onload The object finished loading onmouseover The cursor moved over an object For example, let’s say that our cat handles the event onpetting by performing the actions purr and stretch.


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Start Me Up! 43 To use a switch/case statement: 1. onload = initAll; When the page loads, call the initAll() function. 2. onclick = ➝ saySomething; In the function, we set the onclick handler for each of the buttons on the page. Because we set the id attribute along with the value attribute in the HTML, we’re able to use getElementById() to set the event handler.

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