我有一个用于创建JSON数组的表单,请参阅my previous question以供参考。
在此表单中,用户可以通过单击按钮并填写所述额外详细信息来向fom添加其他详细信息。
然后将它们以类似于下面的方式放入数组中:
<input type="text" name="AdditionalCitizenship[0][CountryOfResidency]">
<input type="text" name="AdditionalCitizenship[0][TaxIdentificationNumber]">
<input type="text" name="AdditionalCitizenship[1][CountryOfResidency]">
<input type="text" name="AdditionalCitizenship[1][TaxIdentificationNumber]">
这样我就可以通过递增数组索引来获取用户输入的详细信息。
我收到了这个脚本以添加额外的表单字段。
$(document).ready(function() {
var max_fields = 10; //maximum input boxes allowed
var wrapper = $(".input_fields_wrap_tel"); //Fields wrapper
var add_button = $(".add_field_button_tel"); //Add button ID
var x = 1; //initlal text box count
$(add_button).click(function(e){ //on add input button click
e.preventDefault();
if(x < max_fields){ //max input box allowed
x++; //text box increment
$(wrapper).append('<div><div class="row"><div class="form-group col-md-4"><label for="AdditionalTelephoneType">Telephone Type</label><input type="text" class="form-control" name="AdditionalTelephoneType[]" ></div><div class="form-group col-md-4"><label for="AdditionalTelephoneDialingCode">Dialing Code</label><input type="text" class="form-control" name="AdditionalTelephoneDialingCode[]"></div><div class="form-group col-md-4"><label for="AdditionalTelephoneNumber">Telephone Number</label><input type="text" class="form-control" name="AdditionalTelephoneNumber[]" ></div></div><a href="#" class="remove_field">Remove</a></div>'); //add input box
}
});
$(wrapper).on("click",".remove_field", function(e){ //user click on remove text
e.preventDefault(); $(this).parent('div').remove(); x--;
})
});
我正在尝试按原样使用,但在这种情况下,很难在创建的HTML中增加x,因为它似乎炸毁了该函数。
我可以像这样迭代地创建HTML:
首先,将DIV结构创建为包装器,如:
var html = "<div></div>"
然后在此变量中附加一个名为input
var input = document.createElement("input");
input.type = "text";
input.name = "AdditionalTelephoneType[" + x"]";
...然后使用wrapper.append和我之前创建的变量插入整个HTML块?
答案 0 :(得分:1)
您可以动态找到最高x
,请参阅评论:
$("#add").on("click", function() {
// Get the containing form
var form = $(this).closest("form");
// Get all the AdditionalCitizenship fields from it using ^=, see
// https://www.w3.org/TR/css3-selectors/#attribute-substrings
var fields = form.find("input[name^=AdditionalCitizenship]");
// Find the one with the highest [x]
var x = fields.get().reduce((x, element) => {
var thisx = element.name.match(/AdditionalCitizenship\[(\d+)\]/);
if (thisx) {
thisx = +thisx[1]; // The capture group, convert to number
if (x < thisx) {
x = thisx;
}
}
return x;
}, 0);
// Add one
++x;
// Use x
console.log("Next x is " + x);
form.append('<input type="text" name="AdditionalCitizenship[' + x + '][CountryOfResidency]">');
form.append('<input type="text" name="AdditionalCitizenship[' + x + '][TaxIdentificationNumber]">');
});
&#13;
<form>
<input type="text" name="AdditionalCitizenship[0][CountryOfResidency]">
<input type="text" name="AdditionalCitizenship[0][TaxIdentificationNumber]">
<input type="text" name="AdditionalCitizenship[1][CountryOfResidency]">
<input type="text" name="AdditionalCitizenship[1][TaxIdentificationNumber]">
<input type="button" id="add" value="Add">
</form>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
&#13;