Question

我想将一个数字列表（范围-999,999 ）“翻译”为Scala中的字符串列表：

功能：

$.ajaxSetup({
    headers: {
        'X-CSRF-TOKEN': $('meta[name="csrf-token"]').attr('content')
    }
});

function scroll_to_class(element_class, removed_height) {
    var scroll_to = $(element_class).offset().top - removed_height;
    if($(window).scrollTop() != scroll_to) {
        $('html, body').stop().animate({scrollTop: scroll_to}, 0);
    }
}
function bar_progress(progress_line_object, direction) {
    var number_of_steps = progress_line_object.data('number-of-steps');
    var now_value = progress_line_object.data('now-value');
    var new_value = 0;
    if(direction == 'right') {
        new_value = now_value + ( 100 / number_of_steps );
    }
    else if(direction == 'left') {
        new_value = now_value - ( 100 / number_of_steps );
    }
    progress_line_object.attr('style', 'width: ' + new_value + '%;').data('now-value', new_value);
}
jQuery(document).ready(function() {

    $('form fieldset:first').fadeIn('slow');

    $('form input[type="text"], form input[type="password"], form textarea').on('focus', function() {
        $(this).removeClass('input-error');
    });

    $('form .btn-next').on('click', function() {
        var parent_fieldset = $(this).parents('fieldset');
        var next_step = true;
        var current_active_step = $(this).parents('form').find('.form-wizard.active');
        var progress_line = $(this).parents('form').find('.progress-line');

        parent_fieldset.find('input[type="text"], input[type="password"], input[type="email"], input[type="radio"]').each(function() {
            if( $(this).val() == "" ) {
                $(this).addClass('input-error');
                next_step = false;
            }
            else {
                $(this).removeClass('input-error');
            }
        });

        parent_fieldset.find('input[type="checkbox"]').each(function() {
            if( $(this).prop("checked") == false ) {
                $('.form-check-label').css("color","red");
                next_step = false;
            }
            else {
                $('.form-check-label').css("color","black");
            }
        });

        if( next_step ) {
            parent_fieldset.fadeOut(400, function() {
                current_active_step.removeClass('active').addClass('activated').next().addClass('active');
                bar_progress(progress_line, 'right');
                $(this).next().fadeIn();
                scroll_to_class( $('form'), 20 );
            });
        }

    });

    // previous step
    $('form .btn-previous').on('click', function() {
        var current_active_step = $(this).parents('form').find('.form-wizard.active');
        var progress_line = $(this).parents('form').find('.progress-line');

        $(this).parents('fieldset').fadeOut(400, function() {
            current_active_step.removeClass('active').prev().removeClass('activated').addClass('active');
            bar_progress(progress_line, 'left');
            $(this).prev().fadeIn();
            scroll_to_class( $('form'), 20 );
        });
    });

    $('form').on('submit', function(e) {
        $(this).find('input[type="text"], input[type="password"], input[type="username"], input[type="email"], input[type="tel"], input[type="url"], textarea').each(function() {
            if( $(this).val() == "" ) {
                e.preventDefault();
                $(this).addClass('input-error');
            }
            else {
                $(this).removeClass('input-error');
            }
        });
    });

});

我想在不使用mk.String的情况下解决这个问题。

我尝试使用模式匹配

def translate(listofnumbers: List[Int]): List[String] = {

但我不知道如何组合12,103等数字的案例

结果应如下所示例如：

def testList( x: Int) = x match{
     case  1 => println("one")

并获取

println(translate(List(1, 2, 3, 4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19)))

函数转换字符串列表中的数字列表

0 个答案: