javascript - 有什么错误？

Question

我用一些 Javascript 代码制作了一个页面：

    function createNewWindow () {
      var userName = document.getElementById('user_name').value;
      var newPage = "<html><head><title>";
      newPage += userName;
      newPage += "</title></head><body>";
      newPage += "<p>Hello " + userName;
      newPage += "</p></body></html>";
      var j = window.open('');
     j.document.write(newPage);
     j.document.close();
     }

现在dreamweaver 说行有错误：

  var userName = document.getElementById('user_name').value
  var newPage = "<html><head><title>"

我没有看到错误，我搜索了整个互联网。有人来帮助我吗？

score 1 · Accepted Answer

您的代码在语法上是正确的。如果 DW 抱怨，那就是缺少分号：

function createNewWindow() {
    var userName = document.getElementById('user_name').value; // semi-colon here
    var newPage = "<html><head><title>"; // semi-colon here
    newPage += userName;
    newPage += "</title></head><body>";
    newPage += "<p>Hello " + userName;
    newPage += "</p></body></html>";
    var j = window.open(''); // semi-colon here
    j.document.write(newPage);
    j.document.close();
}

score 0 · Accepted Answer

你忘了放;：

 var userName = document.getElementById('user_name').value;
 var newPage = "<html><head><title>";

score 0 · Accepted Answer

也许你错过了一个分号：

var userName = document.getElementById('user_name').value
var newPage = "<html><head><title>"
var j = window.open('')

不？

它是否适用于：

var userName = document.getElementById('user_name').value;
var newPage = "<html><head><title>";
var j = window.open('');

score 0 · Accepted Answer

你错过了缺少的分号

var userName = document.getElementById('user_name').value;
var newPage = "<html><head><title>";

javascript - 有什么错误？

4 回答 4

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