Question

我有一个返回所选

的JavaScript函数

function getage() {
    var selectedAge = selectedYear;
    var selectedAge = "";
    console.log(selectedAge);
    for (var key in selectedAge) { // run for every value in selectedAge
        console.log(key);
        if (selectedBirth.indexOf('20-' + key) > -1){
            if (selectedAge[key].length > 0) { // check if the subarray of selectedAge contains a value (if birth has selected age)
                selectedAge = selectedAge + age[key] + " selectedAge"; // add the age code as well as 'selected age' to return string
            } else {
                selectedAge = selectedAge + birth[key]; // adds only birth name
            }    
            selectedAge = selectedAge + "\n" + "\t";
        }
    }
    return selectedAge;
}

任何帮助将不胜感激！

Answer 1

如果你想要新的一行......

在您的HTML 代码（或一般字符串）中，使用\n
在您的HTML 输出中，使用<br/>标记
在HTML 代码及其输出中，将它们合并（如<br/>\n）

Answer 2

编辑：

尝试在代码中添加此var breakline = document.createElement("br");并将其添加到您的selectedString

function getCoverage() {
  var selectedMarkers = selectedTowns;
  var selectedString = "";
  var breakline = document.createElement('br');
  selectedString.appendChild(breakline);
  console.log(selectedMarkers);
  for (var key in selectedMarkers) { // run for every value in selectedMarkers
    console.log(key);
    if (selectedRegions.indexOf('ZA-' + key) > -1) { // if current province is one of the selected provinces
      if (selectedMarkers[key].length > 0) { // check if the subarray of selectedMarkers contains a value (if province has selected town)
        selectedString = selectedString + province[key] + " selected towns"; // add the province code as well as 'selected towns' to return string
      } else {
        selectedString = selectedString + province[key]; // adds only province name (since regional coverage for this province)
      }    
      selectedString = selectedString
    }
  }

  return selectedString;
}

Answer 3

在html中，您只需使用<br />您想要使用\n的地方，或者将display: block元素中的每个项目包裹起来，如div或p或li。

然后，您必须确保在插入页面之前未使用jQuery .html()或element.innerHTML = "...";等函数转义html。

Answer 4

另一次尝试，尝试在p或h1之类的元素中添加字符串

function getCoverage() {
    var selectedMarkers = selectedTowns;
    var selectedString = "";
    console.log(selectedMarkers);
    for (var key in selectedMarkers) { // run for every value in selectedMarkers
        console.log(key);
        if (selectedRegions.indexOf('ZA-' + key) > -1) { // if current province is one of the selected provinces
            if (selectedMarkers[key].length > 0) { // check if the subarray of selectedMarkers contains a value (if province has selected town)
                selectedString = selectedString + province[key] + " selected towns"; // add the province code as well as 'selected towns' to return string
            } else {
                selectedString = selectedString + province[key]; // adds only province name (since regional coverage for this province)
            }    
            selectedString = selectedString;
        }
    }
    return "<p>" + selectedString + "</p>";
}

Javascript返回字符串

4 个答案: