Question

在if ($(module).text() === '') {下有一条if语句，提示我无法上班：

有人可以在这里发现我在做什么错吗？

//button is pressed, this function is called
function submit(button) {
  var module = $(button).closest().find('.Table2');
  console.log(module);

  //gets the text content of a previous text area
  var copy = $(button).prev().val();

  //checks if the previous text area is empty, if it is, removes it and its container then exits the function
  if (copy == "") {
    $(button).closest('tr').remove();
    return;
  }

  //replaces all line breaks with <br>
  copy = copy.replace(/(?:\r\n|\r|\n)/g, '<br>');

  //remove the button and text area and insert text instead
  button.parentElement.innerHTML = (copy);

  //fall back if all text areas have been submitted empty target the level table and remove DOES NOT WORK
  if ($(module).text() === '') {
    console.log('help me get to here');
    $(module).remove();
  }

  //wrap all occurances of <br><br> in a span so that height of line breaks can be set
  var content = document.getElementById('content').innerHTML;
  var breakReplace = content.replace(/<br><br>/g, '<span style="line-height:14px;"><br><br></span>');
  document.getElementById('content').innerHTML = breakReplace;
}

Answer 1

我终于发现问题出在

中的return

if (copy == "") {
$(button).closest('tr').remove();
return;

}

删除return已解决此问题。

Answer 2

$（模块）确保模块未定义

还需要JQuery选择器（'＃'和'。'）来选择元素

如果函数中的语句不起作用-

2 个答案: