xiaocuixt

// preview with hilight.js and pretty json format
$('[name="json_data"]').on('input change', function () {
    let previewWrapper = $(this).siblings('.preview-wrapper');
    const $code = previewWrapper.find('pre > code');
    if ($(this).val()) {      
      try {
        var val = JSON.parse($(this).val())
      } catch (e) {
        $(this).addClass("warning-bordered");
        return false;