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ayushigeorgeayushigeorge
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Day 44
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‎project 44/index.html‎

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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8" />
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<meta name="viewport" content="width=device-width, initial-scale=1.0" />
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<link rel="stylesheet" href="style.css" />
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<title>Custom Range Slider</title>
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</head>
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<body>
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<h2>Custom Range Slider</h2>
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<div class="range-container">
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<input type="range" id="range" min="0" max="100" />
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<label for="range">50</label>
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</div>
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<script src="script.js"></script>
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</body>
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</html>

‎project 44/script.js‎

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const range = document.getElementById("range");
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range.addEventListener("input", (e) => {
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const value = +e.target.value;
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const label = e.target.nextElementSibling;
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const range_width = getComputedStyle(e.target).getPropertyValue("width");
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const label_width = getComputedStyle(label).getPropertyValue("width");
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const num_width = +range_width.substring(0, range_width.length - 2);
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const num_label_width = +label_width.substring(0, label_width.length - 2);
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const max = +e.target.max;
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const min = +e.target.min;
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const left =
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value * (num_width / max) -
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num_label_width / 2 +
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scale(value, min, max, 10, -10);
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label.style.left = `${left}px`;
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label.innerHTML = value;
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});
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// https://stackoverflow.com/questions/10756313/javascript-jquery-map-a-range-of-numbers-to-another-range-of-numbers
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const scale = (num, in_min, in_max, out_min, out_max) => {
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return ((num - in_min) * (out_max - out_min)) / (in_max - in_min) + out_min;
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};

‎project 44/style.css‎

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@import url('https://fonts.googleapis.com/css?family=Lato&display=swap');
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* {
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box-sizing: border-box;
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}
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body {
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background-image: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
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font-family: 'Lato', sans-serif;
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display: flex;
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flex-direction: column;
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align-items: center;
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justify-content: center;
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height: 100vh;
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overflow: hidden;
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margin: 0;
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}
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h2 {
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position: absolute;
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top: 10px;
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}
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.range-container {
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position: relative;
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}
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input[type='range'] {
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width: 300px;
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margin: 18px 0;
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-webkit-appearance: none;
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}
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input[type='range']:focus {
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outline: none;
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}
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input[type='range'] + label {
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background-color: #fff;
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position: absolute;
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top: -25px;
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left: 110px;
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width: 80px;
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padding: 5px 0;
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text-align: center;
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border-radius: 4px;
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box-shadow: 0 0 5px rgba(0, 0, 0, 0.3);
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}
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/* Chrome & Safari */
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input[type='range']::-webkit-slider-runnable-track {
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background: purple;
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border-radius: 4px;
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width: 100%;
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height: 10px;
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cursor: pointer;
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}
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input[type='range']::-webkit-slider-thumb {
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-webkit-appearance: none;
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height: 24px;
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width: 24px;
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background: #fff;
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border-radius: 50%;
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border: 1px solid purple;
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margin-top: -7px;
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cursor: pointer;
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}
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/* Firefox */
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input[type='range']::-moz-range-track {
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background: purple;
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border-radius: 4px;
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width: 100%;
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height: 13px;
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cursor: pointer;
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}
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input[type='range']::-moz-range-thumb {
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-webkit-appearance: none;
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height: 24px;
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width: 24px;
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background: #fff;
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border-radius: 50%;
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border: 1px solid purple;
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margin-top: -7px;
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cursor: pointer;
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}
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/* IE */
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input[type='range']::-ms-track {
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background: purple;
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border-radius: 4px;
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width: 100%;
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height: 13px;
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cursor: pointer;
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}
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input[type='range']::-ms-thumb {
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-webkit-appearance: none;
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height: 24px;
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width: 24px;
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background: #fff;
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border-radius: 50%;
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border: 1px solid purple;
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margin-top: -7px;
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cursor: pointer;
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}

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