摩斯密碼 | 程式專案 | 橘蘋學習平台

{"id":197168,"student_id":12205,"content":"{\"html\":\"\u003c!DOCTYPE html\u003e\\n\u003chtml\u003e\\n\u003chead\u003e\\n\\t\u003ctitle\u003eDocument\u003c/title\u003e\\n\\t\u003clink rel=\\\"stylesheet\\\" href=\\\"https://stackpath.bootstrapcdn.com/bootstrap/4.1.0/css/bootstrap.min.css\\\" integrity=\\\"sha384-9gVQ4dYFwwWSjIDZnLEWnxCjeSWFphJiwGPXr1jddIhOegiu1FwO5qRGvFXOdJZ4\\\" crossorigin=\\\"anonymous\\\"\u003e\\n\\t\u003cscript src=\\\"https://code.jquery.com/jquery-3.3.1.slim.min.js\\\" integrity=\\\"sha384-q8i/X+965DzO0rT7abK41JStQIAqVgRVzpbzo5smXKp4YfRvH+8abtTE1Pi6jizo\\\" crossorigin=\\\"anonymous\\\"\u003e\u003c/script\u003e\\n    \u003cscript src=\\\"https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.0/umd/popper.min.js\\\" integrity=\\\"sha384-cs/chFZiN24E4KMATLdqdvsezGxaGsi4hLGOzlXwp5UZB1LY//20VyM2taTB4QvJ\\\" crossorigin=\\\"anonymous\\\"\u003e\u003c/script\u003e\\n    \u003cscript src=\\\"https://stackpath.bootstrapcdn.com/bootstrap/4.1.0/js/bootstrap.min.js\\\" integrity=\\\"sha384-uefMccjFJAIv6A+rW+L4AHf99KvxDjWSu1z9VI8SKNVmz4sk7buKt/6v9KI65qnm\\\" crossorigin=\\\"anonymous\\\"\u003e\u003c/script\u003e\\n\u003c/head\u003e\\n\u003cbody class=\\\"text-center p-4\\\"\u003e\\n    \u003ch2\u003e摩斯密碼\u003c/h2\u003e\\n    \u003ctextarea class=\\\"form-control\\\" rows=\\\"8\\\" cols=\\\"40\\\" id=\\\"text\\\"\u003e\u003c/textarea\u003e\\n    \u003cdiv class=\\\"m-2\\\"\u003e\\n        \u003cbutton class=\\\"btn btn-primary\\\" id=\\\"encode\\\"\u003e編碼\u003c/button\u003e\\n        \u003cbutton class=\\\"btn btn-primary\\\" id=\\\"decode\\\"\u003e解碼\u003c/button\u003e\\n        \u003cbutton class=\\\"btn btn-primary\\\" id=\\\"play\\\"\u003e播放\u003c/button\u003e    \\n    \u003c/div\u003e\\n\u003c/body\u003e\\n\u003c/html\u003e\",\"css\":\"textarea {\\n    font-family: monospace;\\n    font-weight: 900;\\n    font-size: 3rem;\\n}\",\"js\":\"\"}","created_at":"2020-10-23T12:50:36.812+08:00","updated_at":"2020-10-23T12:52:24.343+08:00","name":"摩斯密碼 ","language":"web","screenshot":{"url":"https://cdn0.koding.school/uploads/project/screenshot/197168/26a90f63325fcb1537af6787d26ff843.jpg"},"parent_id":103491,"plugin":"var encodeTable = {\n    A: '.-',\n    B: '-...',\n    C: '-.-.',\n    D: '-..',\n    E: '.',\n    F: '..-.',\n    G: '--.',\n    H: '....',\n    I: '..',\n    J: '.---',\n    K: '-.-',\n    L: '.-..',\n    M: '--',\n    N: '-.',\n    O: '---',\n    P: '.--.',\n    Q: '--.-',\n    R: '.-.',\n    S: '...',\n    T: '-',\n    U: '..-',\n    V: '...-',\n    W: '.--',\n    X: '-..-',\n    Y: '-.--',\n    Z: '--..',\n    a: '.-',\n    b: '-...',\n    c: '-.-.',\n    d: '-..',\n    e: '.',\n    f: '..-.',\n    g: '--.',\n    h: '....',\n    i: '..',\n    j: '.---',\n    k: '-.-',\n    l: '.-..',\n    m: '--',\n    n: '-.',\n    o: '---',\n    p: '.--.',\n    q: '--.-',\n    r: '.-.',\n    s: '...',\n    t: '-',\n    u: '..-',\n    v: '...-',\n    w: '.--',\n    x: '-..-',\n    y: '-.--',\n    z: '--..',\n    1: '.----',\n    2: '..---',\n    3: '...--',\n    4: '....-',\n    5: '.....',\n    6: '-....',\n    7: '--...',\n    8: '---..',\n    9: '----.',\n    0: '-----',\n    '.': '.-.-.-',\n    ':': '---...',\n    ',': '--..--',\n    ';': '-.-.-.',\n    '?': '..--..',\n    '=': '-...-',\n    \"'\": '.----.',\n    '/': '-..-.',\n    '!': '-.-.--',\n    '-': '-....-',\n    '_': '..--.-',\n    '\"': '.-..-.',\n    '(': '-.--.',\n    ')': '-.--.-',\n    '$': '...-..-',\n    '\u0026': '.-...',\n    '@': '.--.-.',\n    '+': '.-.-.'\n}\n\nvar decodeTable = {};\nfor (var key in encodeTable) {\n    decodeTable[encodeTable[key]] = key;\n}\n\nvar audioCtx = new (window.AudioContext || window.webkitAudioContext)();\n\nfunction playNote(frequency, duration) {\n    // create Oscillator node\n    var oscillator = audioCtx.createOscillator();\n\n    oscillator.type = 'square';\n    oscillator.frequency.value = frequency; 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