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HTML Settings

Here you can Sed posuere consectetur est at lobortis. Donec ullamcorper nulla non metus auctor fringilla. Maecenas sed diam eget risus varius blandit sit amet non magna. Donec id elit non mi porta gravida at eget metus. Praesent commodo cursus magna, vel scelerisque nisl consectetur et.

              <form class="container" id="needs-validation" novalidate>
  <div class="row">
    <div class="col-md-6 mb-3">
      <label for="input-name">Name</label>
      <input type="text" class="form-control" name="name" id="input-name" placeholder="Name" required>
      <div class="invalid-feedback"></div>
  <div class="row">
    <div class="col-md-6 mb-3">
      <label for="input-email">Email</label>
      <input type="email" class="form-control" name="email" id="input-email" placeholder="example@email.jp" required>
      <div class="invalid-feedback"></div>
  <div class="row">
    <div class="col-md-6 mb-3">
      <label for="input-message">Message</label>
      <textarea class="form-control" name="message" id="input-message" required maxlength="100" placeholder="最大100文字"></textarea>
      <div class="message-text-counter">現在<span class="message-text-count">0</span>文字</div>
      <div class="invalid-feedback"></div>
  <button class="btn btn-primary" type="submit">Submit</button>
              $(function() {
var $form = $("#needs-validation"),
    $inputs = $form.find('.form-control'),
    $email = $inputs.find('[name=name]'),
    $message = $inputs.find('[name=message]'),
    $content_text_counter = $form.find('.message-text-count');
    $form.on("submit", function(event) {
      if (event.target.checkValidity() == false) {
    $inputs.on('change, keyup', function () {
      if($(this).is('[name=message]')) {
        var count = countTxtLength($(this).val());

var feedbackMessage = {};
feedbackMessage.name = {
  valueMissing: '名前を入力してください',
feedbackMessage.email = {
  valueMissing: 'メールアドレスを入力してください',
  typeMismatch: '不正なメールアドレスです'
feedbackMessage.message = {
  valueMissing: 'メッセージを入力してください',
  tooLong: '文字数が長すぎます'

//@param {JQuery} $inputs .form-control elements array
function validation($inputs) {
  $inputs.each(function(i, el) {
    var $el = $(el);
    var id = $el.attr('id').replace('input-', '');
    var validity = el.validity;
    var $feedback = $el.find('~ .invalid-feedback');
    var message = feedbackMessage[id];
    $.each(message, function(i, mes) {
      if(validity[i] === true) {

//@param value {string} 数える文字列
//@param mode {number} 0=全部1 1=半角0.5 全角1
function countTxtLength(value, mode) {
  var count = 0, mode = mode || 0;

  for(var i = value.length; i--; ) {
    if(mode === 1 && /^[\u0020-\u007e]+$/.test(value.charAt(i))) {
      count += 0.5;
    } else {
      count += 1;

  return count;

 var _feedbackMessageSample = {
   //ユーザーがUIが値に変換できない入力をした場合に true
  badInput: '',
  //要素の値が与えられたパターンにマッチしない場合に true
  patternMismatch: '',
  //要素の値が与えられた最大値を超える場合に true
  rangeOverflow: '',
  //要素の値が与えられた最小値を下回る場合に true
  rangeUnderflow: '',
  //要素の値が step 属性で与えられた規則に合わない場合に true
  stepMismatch: '',
  //要素の値が与えられた長さより長い場合に true
  tooLong: '',
  //要素の値が与えられた長さより短い場合に true
  tooShort: '',
  //要素の値が正しい構文ではない場合に true
  typeMismatch: '',
  //要素が入力必須のフィールドであるのに値がない場合に true
  valueMissing : ''
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