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Javier Neira

Interesante curiosidad javascript | aNieto2K - 0 views

www.anieto2k.com/...eresante-curiosidad-javascript

javascript dom implementation

shared by Javier Neira on 27 Dec 09 - Cached
  • NodeList objects in the DOM are live.
  • Tener unas cuantas referencias a NodeList es como tener un puñado de zombies a las puertas de tu casa.
Javier Neira

6 Advanced JavaScript Techniques You Should Know - 3 views

sixrevisions.com/...ipt-techniques-you-should-know

javascript tips bestpractices code snippets

shared by Javier Neira on 09 Oct 09 - Cached
  • function showStatistics(args) { document.write("<p><strong>Name:</strong> " + args.name + "<br />"); document.write("<strong>Team:</strong> " + args.team + "<br />"); if (typeof args.position === "string") { document.write("<strong>Position:</strong> " + args.position + "<br />"); } if (typeof args.average === "number") { document.write("<strong>Average:</strong> " + args.average + "<br />"); } if (typeof args.homeruns === "number") { document.write("<strong>Home Runs:</strong> " + args.homeruns + "<br />"); } if (typeof args.rbi === "number") { document.write("<strong>Runs Batted In:</strong> " + args.rbi + "</p>"); } } showStatistics({ name: "Mark Teixeira" }); showStatistics({ name: "Mark Teixeira", team: "New York Yankees" }); showStatistics({ name: "Mark Teixeira", team: "New York Yankees", position: "1st Base", average: .284, homeruns: 32, rbi: 101 });
  • Object-oriented JavaScript implements namespace-like principles due to the fact that properties and methods are declared inside of objects, thus there are less likely to be conflicts. A conflict could arise, however, through object names. And very likely, the conflict will occur "silently", thus you may not be alerted to the issue immediately.
  • if (typeof MY == "undefined") { MY = new Object(); MY.CUSTOM = new Object(); } MY.CUSTOM.namespace = function() { function showStatistics(args) { document.write("<p><strong>Name:</strong> " + args.name + "<br />"); document.write("<strong>Team:</strong> " + args.team + "<br />"); if (typeof args.position === "string") { document.write("<strong>Position:</strong> " + args.position + "<br />"); } if (typeof args.average === "number") { document.write("<strong>Average:</strong> " + args.average + "<br />"); } if (typeof args.homeruns === "number") { document.write("<strong>Home Runs:</strong> " + args.homeruns + "<br />"); } if (typeof args.rbi === "number") { document.write("<strong>Runs Batted In:</strong> " + args.rbi + "</p>"); } } showStatistics({ name: "Mark Teixeira", team: "New York Yankees", position: "1st Base", average: .284, homeruns: 32, rbi: 101 }); } MY.CUSTOM.namespace();
  • ...1 more annotation...
  • Rendering Readable HTML
  • Javier Neira on 09 Oct 09
     
    //2. Object Literals to Pass Optional Arguments function showStatistics(args) { document.write("Name: " + args.name + "
    "); document.write("Team: " + args.team + "
    "); if (typeof args.position === "string") { document.write("Position: " + args.position + "
    "); } if (typeof args.average === "number") { document.write("Average: " + args.average + "
    "); } if (typeof args.homeruns === "number") { document.write("Home Runs: " + args.homeruns + "
    "); } if (typeof args.rbi === "number") { document.write("Runs Batted In: " + args.rbi + ""); } } showStatistics({ name: "Mark Teixeira" }); showStatistics({ name: "Mark Teixeira", team: "New York Yankees" }); showStatistics({ name: "Mark Teixeira", team: "New York Yankees", position: "1st Base", average: .284, homeruns: 32, rbi: 101 }); //Using Namespaces to Prevent Conflicts if (typeof MY == "undefined") { MY = new Object(); MY.CUSTOM = new Object(); } MY.CUSTOM.namespace = function() { function showStatistics(args) { .................. } showStatistics({ name: "Mark Teixeira", team: "New York Yankees", position: "1st Base", average: .284, homeruns: 32, rbi: 101 }); } MY.CUSTOM.namespace();
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