krawaller/todo.html

## todo.html
<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <meta http-equiv="X-UA-Compatible" content="ie=edge">
  <title>Document</title>
  <style>
    .done {
      background-color: #DDD;
      text-decoration: line-through;
    }
  </style>
</head>
<body>
  <form>
    <input id="field">
    <input type="submit" value="Add">
  </form>
  <hr/>
  <ul id="list"></ul>
  <button id="clear">Clear all done</button>
  <script src="https://code.jquery.com/jquery-3.3.1.min.js"></script>
  <script>

  function render(items) {
    let html = '';
    for(let i in items){ // not using for-of since i need the key too
      html += `
        <li data-pos="${i}" class="${items[i].done ? 'done' : ''}">
          <span class="toggle">${items[i].text}</span>
          <button class="delete">X</button>
        </li>
      `;
    }
    $("#list").html(html);
  }

  let myItems = [{text:"Carpe diem"}];

  $("form").submit(function(e){
    e.preventDefault(); // stop page from reloading
    let newItem = $("#field").val();
    myItems.push({text:newItem});
    render(myItems);
    $("#field").val(""); // empty field
  });

  $("#list").on("click", ".delete", function(){
    let delIndex = parseInt($(this).closest("li").attr("data-pos"));
    myItems.splice(delIndex, 1); // removes 1 item starting from delIndex
    render(myItems);
  });

  $("#list").on("click", ".toggle", function(){
    let toggleIndex = parseInt($(this).closest("li").attr("data-pos"));
    myItems[toggleIndex].done = !myItems[toggleIndex].done;
    render(myItems);
  });

  $("#clear").click(function(){
    let remaining = [];
    for(let item of myItems){
      if (!item.done){
        remaining.push(item);
      }
    }
    myItems = remaining;
    render(myItems);
  });

  render(myItems);

  </script>
</body>
</html>
	<!DOCTYPE html>
	<html lang="en">
	<head>
	<meta charset="UTF-8">
	<meta name="viewport" content="width=device-width, initial-scale=1.0">
	<meta http-equiv="X-UA-Compatible" content="ie=edge">
	<title>Document</title>
	<style>
	.done {
	background-color: #DDD;
	text-decoration: line-through;
	}
	</style>
	</head>
	<body>
	<form>
	<input id="field">
	<input type="submit" value="Add">
	</form>
	<hr/>
	<ul id="list"></ul>
	<button id="clear">Clear all done</button>
	<script src="https://code.jquery.com/jquery-3.3.1.min.js"></script>
	<script>

	function render(items) {
	let html = '';
	for(let i in items){ // not using for-of since i need the key too
	html += `
	<li data-pos="${i}" class="${items[i].done ? 'done' : ''}">
	<span class="toggle">${items[i].text}</span>
	<button class="delete">X</button>
	</li>
	`;
	}
	$("#list").html(html);
	}

	let myItems = [{text:"Carpe diem"}];

	$("form").submit(function(e){
	e.preventDefault(); // stop page from reloading
	let newItem = $("#field").val();
	myItems.push({text:newItem});
	render(myItems);
	$("#field").val(""); // empty field
	});

	$("#list").on("click", ".delete", function(){
	let delIndex = parseInt($(this).closest("li").attr("data-pos"));
	myItems.splice(delIndex, 1); // removes 1 item starting from delIndex
	render(myItems);
	});

	$("#list").on("click", ".toggle", function(){
	let toggleIndex = parseInt($(this).closest("li").attr("data-pos"));
	myItems[toggleIndex].done = !myItems[toggleIndex].done;
	render(myItems);
	});

	$("#clear").click(function(){
	let remaining = [];
	for(let item of myItems){
	if (!item.done){
	remaining.push(item);
	}
	}
	myItems = remaining;
	render(myItems);
	});

	render(myItems);

	</script>
	</body>
	</html>