Question

下面的代码不起作用？

function titleCase(str){
    var newStr = str.split(" "); //split string turn it into seperated words[]
    var resutl;

    for(vari=0; i < newStr.length; i++){ //iterate all words
        var result = newStr[i].charAt(0).toUpperCase + 

        // find first letter and turn it into capital 
        newStr[i].subString(1).toLowerCase(); 
    }
    return result.join(" ");
}

Answer 1

导致您的代码是字符串，而不是数组。你不能加入一个字符串。

循环的每次迭代都是用新单词替换变量结果。你需要初始化一个结果数组[]并将每个结果推送到数组，然后在循环完成后加入数组。

Answer 2

在空格上分解字符串并使用以下函数迭代它：

<html lang="en" ng-app="courseCatalog" ng-controller="resultsController">
  <!-- some head info -->
<body>
<form id="search_form" name="search_form" ng-submit="searchNow()">
 <!--
  form fields in here, for example:
 -->
  <input type="text" id="txtkeywords" name="keywords" ng-model="search.keywords">
  <input type="text" id="txtsubject" name="term" ng-model="search.subject">
  <input type="text" id="textterm" name="subject" ng-model="search.term">
  <input id="submit-button" name="submit-button" type="submit"
            value=" Search Now "/>
</form>

<!-- Here is the , I pre-populate some form fields -->
<div id='filter_holder' class='hidden_box'>
 <div class='hidden_box'>{{search.term='1|201601';}}</div>
 <div class='hidden_box'>{{search.subject='6|BIO';}}</div>
</div>
<!-- And here, I try to manually submit the form -->
  <script type="text/javascript">
    document.getElementById('submit-button').click();
  </script>
</body>

Answer 3

result需要是一个数组，而且您的代码中也有一些拼写错误，例如：缺少()

＆＃13;

function titleCase(str) {
    var newStr = str.split(" ");
    var result = [];
    for (var i = 0; i < newStr.length; i++) {
        result.push(newStr[i].charAt(0).toUpperCase() + newStr[i].substring(1).toLowerCase());
    }
    return result.join(' ');
}


var str = 'hELLO wORLD';

document.write(titleCase(str));

＆＃13;

Answer 4

你可以试试这个：

<!DOCTYPE html>
<html>
<body>

<?php
error_reporting( E_ALL & ~E_NOTICE );
// define variables and set to empty values
$name = $email = $bday = $gender = $image="";

//$image=$_FILES["image"]["name"]; 



if(isset($_POST['submit'])){
$name = $_POST["name"];
$email = $_POST["email"];
 $bday=$_POST["bday"];
$gender = $_POST["gender"];
$image =$_POST["image"];



$servername = "localhost";
$username = "mvs1";
$password = "";
$dbname="scootsy_categories";



$conn = new mysqli($servername, $username, $password,$dbname);

// Check connection
if ($conn->connect_error) {
die("Connection failed: " . $conn->connect_error);
} 
//echo "Connected successfully";

$sql = "INSERT INTO user_details(name,email,bday,gender,image) VALUES   ('$name','$email','$bday','$gender','$image')";
if ($conn->query($sql) === TRUE) {
   // echo "New record created successfully";
} else {
echo "Error: " . $sql . "<br>" . $conn->error;
}
//if($name !="" || $email !="" || $bday !=""  || $gender !=""  || $image !=""  )
//{
//  $sql="DELETE FROM user_details where name='$name' || email='$email' ||   bday='$bday' || gender='$gender' || image='$image'";
 //}







$conn->close();



}
echo "Successful";
?>
</body>

</html>

另一种方法：

function titleCase(str){ 
 var newStr = str.split(" "); 

 var result = [];

 for(var i=0; i < newStr.length; i++){ 
   result.push(newStr[i].charAt(0).toUpperCase() + 
    newStr[i].substring(1).toLowerCase());

 } 

  return result.join(' ');

}

Answer 5

尝试使用正则表达式

var data = "The mission is to turn each word's first letter into capital"; 
data = data.replace(/ (.)/g,function(w){return w.toUpperCase()});

缺点：这不会使第一个字符大写。

任务是将每个单词的第一个字母转换为大写（Javascript）

5 个答案: