Learning Javascript - Is this a messy implementation of a Javascript Slider?












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I've been learning JS for a few months now and I've just finished creating a small image slider for a website. The sliders functionality is as follows:




  • Continuously cycle through images and loop back to the start

  • Allow the user to click through to a certain section

  • When clicked, the cycle timer must reset and the loop must continue from that point


    • cycle through a corresponding DOM element (in this case it's a testimonial quote)




I'm mainly looking for pointers on how to make my code more efficient or if I've used bad practice. Any help would be appreciated.





var container = document.getElementById('slide-container');
var button = document.getElementById('slider-buttons');
var quote = document.getElementById('quote-container');
var interval = 0;

sliderMove = function(position){

// Move container to next image
container.style.left = -(350 * position) + 'px';

// Remove active classes from all children
for (var i = 0; i < quote.children.length; i++) {
quote.children[i].classList.remove("quote-active");
button.children[i].classList.remove('active');
};

// Add active classes to specified children
quote.children[position].classList.add("quote-active");
button.children[position].classList.add('active');

// Increase global interval variable by 1
interval++;

// Set interval back to 0 if it exceeds the amount of quotes
if (interval >= quote.children.length) {
interval = 0;
};
};


// Add event listener to buttons
button.addEventListener('click', function(event){
clearInterval(timer); // Resets timer when user clicks on an image
autoMove(); // Restarts timer
if (event.target.id > -1) { // Ensures the target is valid
interval = event.target.id;
sliderMove(interval);
};
});

// Auto Rotate
function autoMove(index) {
timer = setInterval(function(){
index = interval;
sliderMove(index);
},5000);
}

autoMove(0);
sliderMove(0);








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    I've been learning JS for a few months now and I've just finished creating a small image slider for a website. The sliders functionality is as follows:




    • Continuously cycle through images and loop back to the start

    • Allow the user to click through to a certain section

    • When clicked, the cycle timer must reset and the loop must continue from that point


      • cycle through a corresponding DOM element (in this case it's a testimonial quote)




    I'm mainly looking for pointers on how to make my code more efficient or if I've used bad practice. Any help would be appreciated.





    var container = document.getElementById('slide-container');
    var button = document.getElementById('slider-buttons');
    var quote = document.getElementById('quote-container');
    var interval = 0;

    sliderMove = function(position){

    // Move container to next image
    container.style.left = -(350 * position) + 'px';

    // Remove active classes from all children
    for (var i = 0; i < quote.children.length; i++) {
    quote.children[i].classList.remove("quote-active");
    button.children[i].classList.remove('active');
    };

    // Add active classes to specified children
    quote.children[position].classList.add("quote-active");
    button.children[position].classList.add('active');

    // Increase global interval variable by 1
    interval++;

    // Set interval back to 0 if it exceeds the amount of quotes
    if (interval >= quote.children.length) {
    interval = 0;
    };
    };


    // Add event listener to buttons
    button.addEventListener('click', function(event){
    clearInterval(timer); // Resets timer when user clicks on an image
    autoMove(); // Restarts timer
    if (event.target.id > -1) { // Ensures the target is valid
    interval = event.target.id;
    sliderMove(interval);
    };
    });

    // Auto Rotate
    function autoMove(index) {
    timer = setInterval(function(){
    index = interval;
    sliderMove(index);
    },5000);
    }

    autoMove(0);
    sliderMove(0);








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    Lachlan McBride is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
    Check out our Code of Conduct.























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      I've been learning JS for a few months now and I've just finished creating a small image slider for a website. The sliders functionality is as follows:




      • Continuously cycle through images and loop back to the start

      • Allow the user to click through to a certain section

      • When clicked, the cycle timer must reset and the loop must continue from that point


        • cycle through a corresponding DOM element (in this case it's a testimonial quote)




      I'm mainly looking for pointers on how to make my code more efficient or if I've used bad practice. Any help would be appreciated.





      var container = document.getElementById('slide-container');
      var button = document.getElementById('slider-buttons');
      var quote = document.getElementById('quote-container');
      var interval = 0;

      sliderMove = function(position){

      // Move container to next image
      container.style.left = -(350 * position) + 'px';

      // Remove active classes from all children
      for (var i = 0; i < quote.children.length; i++) {
      quote.children[i].classList.remove("quote-active");
      button.children[i].classList.remove('active');
      };

      // Add active classes to specified children
      quote.children[position].classList.add("quote-active");
      button.children[position].classList.add('active');

      // Increase global interval variable by 1
      interval++;

      // Set interval back to 0 if it exceeds the amount of quotes
      if (interval >= quote.children.length) {
      interval = 0;
      };
      };


      // Add event listener to buttons
      button.addEventListener('click', function(event){
      clearInterval(timer); // Resets timer when user clicks on an image
      autoMove(); // Restarts timer
      if (event.target.id > -1) { // Ensures the target is valid
      interval = event.target.id;
      sliderMove(interval);
      };
      });

      // Auto Rotate
      function autoMove(index) {
      timer = setInterval(function(){
      index = interval;
      sliderMove(index);
      },5000);
      }

      autoMove(0);
      sliderMove(0);








      share







      New contributor




      Lachlan McBride is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.











      I've been learning JS for a few months now and I've just finished creating a small image slider for a website. The sliders functionality is as follows:




      • Continuously cycle through images and loop back to the start

      • Allow the user to click through to a certain section

      • When clicked, the cycle timer must reset and the loop must continue from that point


        • cycle through a corresponding DOM element (in this case it's a testimonial quote)




      I'm mainly looking for pointers on how to make my code more efficient or if I've used bad practice. Any help would be appreciated.





      var container = document.getElementById('slide-container');
      var button = document.getElementById('slider-buttons');
      var quote = document.getElementById('quote-container');
      var interval = 0;

      sliderMove = function(position){

      // Move container to next image
      container.style.left = -(350 * position) + 'px';

      // Remove active classes from all children
      for (var i = 0; i < quote.children.length; i++) {
      quote.children[i].classList.remove("quote-active");
      button.children[i].classList.remove('active');
      };

      // Add active classes to specified children
      quote.children[position].classList.add("quote-active");
      button.children[position].classList.add('active');

      // Increase global interval variable by 1
      interval++;

      // Set interval back to 0 if it exceeds the amount of quotes
      if (interval >= quote.children.length) {
      interval = 0;
      };
      };


      // Add event listener to buttons
      button.addEventListener('click', function(event){
      clearInterval(timer); // Resets timer when user clicks on an image
      autoMove(); // Restarts timer
      if (event.target.id > -1) { // Ensures the target is valid
      interval = event.target.id;
      sliderMove(interval);
      };
      });

      // Auto Rotate
      function autoMove(index) {
      timer = setInterval(function(){
      index = interval;
      sliderMove(index);
      },5000);
      }

      autoMove(0);
      sliderMove(0);






      javascript





      share







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      Lachlan McBride is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.










      share







      New contributor




      Lachlan McBride is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.








      share



      share






      New contributor




      Lachlan McBride is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.









      asked 1 min ago









      Lachlan McBride

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      New contributor




      Lachlan McBride is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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      New contributor





      Lachlan McBride is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.






      Lachlan McBride is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.






















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