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HTML

              
                
<h2 class="heading">Type once with typeTo()</h2>
<code><pre>$('h3').typeTo("Testing Typer.js jQuery Plugin with a 1 time trext string.");</pre></code>
<h3 class="typer type-once"></h3>


<br><br><hr>

<h2 class="heading">Type indefinitely with typer()</h2>
Now let's say you want to loop over a set of strings for the typing effect. Easy!<br><br>


<h2 class="typer" data-typer-targets='{ "targets" : ["Custom Web Application.","New Website.", "SugarCRM Module.", "WordPress Module.", "SEO and Marketing.", "Consulting.", "Mobile Application.", "eCommerce Store."]}'></h2>
<h2 class="typer" data-typer-targets="Testing Typer.js jQuery Plugin, Pretty sweet little plugin!"></h2>
<h2 class="typer" data-typer-targets="Custom Web Application,New Website,SugarCRM Module,WordPress Module, SEO and Marketing,Mobile Application,Consulting,eCommerce Store"></h2>

jQuery Code...
<code><pre>$('[data-typer-targets]').typer();</pre></code><br>
HTML: Comma seperated version (strings seperated with commas)...
<code><pre>&lt;h2 data-typer-targets="Testing Typer.js jQuery Plugin, Pretty sweet little plugin!"&gt;&lt;/h2&gt;</pre></code><br>

HTML: JSON version...
<code><pre>&lt;h2 data-typer-targets='
    { &quot;targets&quot; : [&quot;Testing Typer.js jQuery Plugin.&quot;,&quot;Pretty sweet little plugin!&quot;, &quot;Stumptown has the best coffee in Flatiron.&quot;]}'&gt;&lt;/h2&gt;</pre></code>

<h2 class="typer" data-typer-targets='{ "targets" : ["This is the JSON version...", "Testing Typer.js jQuery Plugin.","Pretty sweet little plugin!", "Stumptown has the best coffee in Flatiro."] }'></h2>


That code will start the effect on all elements with the data-typer-targets attribute.<br><br>

You obviously need to supply it with some source data. The data-typer-targets attribute can be either a comma-separated string or a piece of JSON.<br>


<br><br><hr>

<h2 class="heading">Options</h2>

There are some options that are available to you as well:<br><br>

<code><pre>
// Defaults
{
  highlightSpeed    : 20,
  typeSpeed         : 100,
  clearDelay        : 500,
  typeDelay         : 200,
  clearOnHighlight  : true,
  typerDataAttr     : 'data-typer-targets',
  typerInterval     : 2000
}</pre>
</code>

<br>

Set the options individually:<br>

<code><pre>$.typer.options.highlightSpeed = 500;</pre></code>

<br><br><hr>

<h2 class="heading">About</h2>
jquery.typer.js was originally developed for LayerVault by Kelly Sutton.<br>
GitHub code - <a  href="https://github.com/jasondavis/jquery.typer.js">https://github.com/jasondavis/jquery.typer.js</a>
              
            
!

CSS

              
                .heading{
  color: #0089FF;
}
h3,
.typer,
.type-once{
  color: #F1569D;
  font-size: 28px;
  font-family: sans-serif;
}
pre{
  word-break: normal;
  padding: 16px;
  overflow: auto;
  font-size: 85%;
  line-height: 1.45;
  background-color: #F7F7F7;
  border-radius: 3px;
  font: 16px Consolas, "Liberation Mono", Menlo, Courier, monospace;
  line-height: 1.6;
}
              
            
!

JS

              
                String.prototype.rightChars = function(n){
  if (n <= 0) {
    return "";
  }
  else if (n > this.length) {
    return this;
  }
  else {
    return this.substring(this.length, this.length - n);
  }
};

(function($) {
  /*
  var
    options = {
      highlightSpeed    : 20,
      typeSpeed         : 100,
      clearDelay        : 500,
      typeDelay         : 200,
      clearOnHighlight  : true,
      typerDataAttr     : 'data-typer-targets',
      typerInterval     : 2000
    },
 */
  var options = {
  highlightSpeed    : 20,
  typeSpeed         : 200,
  clearDelay        : 1500,
  typeDelay         : 200,
  clearOnHighlight  : true,
  typerDataAttr     : 'data-typer-targets',
  typerInterval     : 1000
 },
    highlight,
    clearText,
    backspace,
    type,
    spanWithColor,
    clearDelay,
    typeDelay,
    clearData,
    isNumber,
    typeWithAttribute,
    getHighlightInterval,
    getTypeInterval,
    typerInterval;

  spanWithColor = function(color, backgroundColor) {
    if (color === 'rgba(0, 0, 0, 0)') {
      color = 'rgb(255, 255, 255)';
    }

    return $('<span></span>')
      .css('color', color)
      .css('background-color', backgroundColor);
  };

  isNumber = function (n) {
    return !isNaN(parseFloat(n)) && isFinite(n);
  };

  clearData = function ($e) {
    $e.removeData([
      'typePosition',
      'highlightPosition',
      'leftStop',
      'rightStop',
      'primaryColor',
      'backgroundColor',
      'text',
      'typing'
    ]);
  };

  type = function ($e) {
    var
      // position = $e.data('typePosition'),
      text = $e.data('text'),
      oldLeft = $e.data('oldLeft'),
      oldRight = $e.data('oldRight');

    // if (!isNumber(position)) {
      // position = $e.data('leftStop');
    // }

    if (!text || text.length === 0) {
      clearData($e);
      return;
    }


    $e.text(
      oldLeft +
      text.charAt(0) +
      oldRight
    ).data({
      oldLeft: oldLeft + text.charAt(0),
      text: text.substring(1)
    });

    // $e.text($e.text() + text.substring(position, position + 1));

    // $e.data('typePosition', position + 1);

    setTimeout(function () {
      type($e);
    }, getTypeInterval());
  };

  clearText = function ($e) {
    $e.find('span').remove();

    setTimeout(function () {
      type($e);
    }, typeDelay());
  };

  highlight = function ($e) {
    var
      position = $e.data('highlightPosition'),
      leftText,
      highlightedText,
      rightText;

    if (!isNumber(position)) {
      position = $e.data('rightStop') + 1;
    }

    if (position <= $e.data('leftStop')) {
      setTimeout(function () {
        clearText($e);
      }, clearDelay());
      return;
    }

    leftText = $e.text().substring(0, position - 1);
    highlightedText = $e.text().substring(position - 1, $e.data('rightStop') + 1);
    rightText = $e.text().substring($e.data('rightStop') + 1);

    $e.html(leftText)
      .append(
        spanWithColor(
            $e.data('backgroundColor'),
            $e.data('primaryColor')
          )
          .append(highlightedText)
      )
      .append(rightText);

    $e.data('highlightPosition', position - 1);

    setTimeout(function () {
      return highlight($e);
    }, getHighlightInterval());
  };

  typeWithAttribute = function ($e) {
    var targets;

    if ($e.data('typing')) {
      return;
    }

    try {
      targets = JSON.parse($e.attr($.typer.options.typerDataAttr)).targets;
    } catch (e) {}

    if (typeof targets === "undefined") {
      targets = $.map($e.attr($.typer.options.typerDataAttr).split(','), function (e) {
        return $.trim(e);
      });
    }

    $e.typeTo(targets[Math.floor(Math.random()*targets.length)]);
  };

  // Expose our options to the world.
  $.typer = (function () {
    return { options: options };
  })();

  $.extend($.typer, {
    options: options
  });

  //-- Methods to attach to jQuery sets

  $.fn.typer = function() {
    var $elements = $(this);

    return $elements.each(function () {
      var $e = $(this);

      if (typeof $e.attr($.typer.options.typerDataAttr) === "undefined") {
        return;
      }

      typeWithAttribute($e);
      setInterval(function () {
        typeWithAttribute($e);
      }, typerInterval());
    });
  };

  $.fn.typeTo = function (newString) {
    var
      $e = $(this),
      currentText = $e.text(),
      i = 0,
      j = 0;

    if (currentText === newString) {
      console.log("Our strings our equal, nothing to type");
      return $e;
    }

    if (currentText !== $e.html()) {
      console.error("Typer does not work on elements with child elements.");
      return $e;
    }

    $e.data('typing', true);

    while (currentText.charAt(i) === newString.charAt(i)) {
      i++;
    }

    while (currentText.rightChars(j) === newString.rightChars(j)) {
      j++;
    }

    newString = newString.substring(i, newString.length - j + 1);

    $e.data({
      oldLeft: currentText.substring(0, i),
      oldRight: currentText.rightChars(j - 1),
      leftStop: i,
      rightStop: currentText.length - j,
      primaryColor: $e.css('color'),
      backgroundColor: $e.css('background-color'),
      text: newString
    });

    highlight($e);

    return $e;
  };

  //-- Helper methods. These can one day be customized further to include things like ranges of delays.

  getHighlightInterval = function () {
    return $.typer.options.highlightSpeed;
  };

  getTypeInterval = function () {
    return $.typer.options.typeSpeed;
  },

  clearDelay = function () {
    return $.typer.options.clearDelay;
  },

  typeDelay = function () {
    return $.typer.options.typeDelay;
  };

  typerInterval = function () {
    return $.typer.options.typerInterval;
  };
})(jQuery);





$('.type-once').typeTo("Testing Typer.js jQuery Plugin with a 1 time text string.");



$('[data-typer-targets]').typer({
  highlightSpeed    : 2660,
  typeSpeed         : 8600,
  clearDelay        : 6500,
  typeDelay         : 6200,
  clearOnHighlight  : false,
  typerDataAttr     : 'data-typer-targets',
  typerInterval     : 2000
});
              
            
!
999px

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