form control as select required bootstrap code example

Example 1: bootstrap select input

<div class="form-group">
    <label for="exampleFormControlSelect1">Example select</label>
    <select class="form-control" id="exampleFormControlSelect1">
      <option>1</option>
      <option>2</option>
      <option>3</option>
      <option>4</option>
      <option>5</option>
    </select>
  </div>
  <div class="form-group">
    <label for="exampleFormControlSelect2">Example multiple select</label>
    <select multiple class="form-control" id="exampleFormControlSelect2">
      <option>1</option>
      <option>2</option>
      <option>3</option>
      <option>4</option>
      <option>5</option>
    </select>
  </div>

Example 2: check if form bootstrap is valid js

function form_validate(attr_id){
    var result = true;
    $('#'+attr_id).validator('validate');
    $('#'+attr_id+' .form-group').each(function(){
        if($(this).hasClass('has-error')){
            result = false;
            return false;
        }
    });
    return result;
}