首页 \ 问答 \ 检查表单中的复选框，如果是值，则获取属性(Check for checkboxes in form and get attribute instead if value)

检查表单中的复选框，如果是值，则获取属性(Check for checkboxes in form and get attribute instead if value)

 我有一个表单作为字符串保存到本地存储。 然而，我的表单有几个复选框，单选按钮等，使用attribute而不是value 。 如何执行此类检查并将正确的“值”传递给dataSave函数中的本地存储？  
function dataSave(){
   var mngrFields = {};
   $(".mngr-field").each(function(){
      if ($(".mngr-field").is("checkbox")){
         mngrFields[this.id] = this.attr("checked");
      } else {
         // Default method to get input-text values
         mngrFields[this.id] = this.value;
      }
   });
   localStorage.setItem('fieldString', JSON.stringify(mngrFields));
}
 
 获取输入文本值的默认方法在它自己的工作正常，但是当包含复选框检查器时，它会因为错误而中断整个应用程序。  
 关于如何构建一个我可以用于单选按钮的好检查器的任何想法？ 

I have a form which is saved to Local Storage as a String. My form however has few checkboxes, radio buttons and so on that use attribute instead of value. How can I perform such a check and pass on right "values" to the Local Storage in my dataSave function? 
function dataSave(){
   var mngrFields = {};
   $(".mngr-field").each(function(){
      if ($(".mngr-field").is("checkbox")){
         mngrFields[this.id] = this.attr("checked");
      } else {
         // Default method to get input-text values
         mngrFields[this.id] = this.value;
      }
   });
   localStorage.setItem('fieldString', JSON.stringify(mngrFields));
}
 
The default method to get input-text values is working just fine on it's own, but when the checkbox checker is included, it breaks the whole application because of an error. 
Any ideas on how can I build up a good checker that I might be able to use for radio buttons as well?

原文：https://stackoverflow.com/questions/38451770

更新时间：2022-09-21 09:09

最满意答案

 根据我的理解，您正在寻找带有功能参数的“注入”类型迭代器。 在php中，注入迭代器是array_reduce，不幸的是它已经坏了，所以你必须编写自己的，例如  
function array_inject($ary, $func, $acc) {
 foreach($ary as $item)
  $acc = $func($acc, $item);
 return $acc;
}
 
 定义一个回调函数，处理每个项目并返回累加器值：  
function boldify($list, $item) {
 return $list .= "<strong>$item</strong>";
}
 
 其余很容易：  
$items = array('foo', 'bar', 'baz');
$res = array_inject($items, 'boldify', '');
print_r($res);

from my understanding, you're looking for an "inject" type iterator with a functional parameter. In php, inject iterator is array_reduce, unfortunately it's broken, so you have to write your own, for example 
function array_inject($ary, $func, $acc) {
 foreach($ary as $item)
  $acc = $func($acc, $item);
 return $acc;
}
 
define a callback function that processes each item and returns accumulator value: 
function boldify($list, $item) {
 return $list .= "<strong>$item</strong>";
}
 
the rest is easy: 
$items = array('foo', 'bar', 'baz');
$res = array_inject($items, 'boldify', '');
print_r($res);

检查表单中的复选框，如果是值，则获取属性(Check for checkboxes in form and get attribute instead if value)

最满意答案

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