如何從javascript訪問Laravel中的數組中的值

Question

我想使用Javascript訪問Laravel中數組內的值，並且這些值在dropdownlist中，並且我想使用onChange（）方法來影響視圖。 查看代碼：

@extends('layouts.app')
@section('content')
<h1>Online Accounting</h1>
<br>
{!! Form::open(['action'=>'IncomeExpenseController@store', 'method' =>'POST']) !!}

    <div class="form-group">
     {{Form::label('IncomeExpense', 'IncomeExpense')}}
     {{Form::select('IncomeExpense', array('Expense'=> 'Expense', 'Income'=>'Income'),null,['class'=>'form-control')}}
    </div>
    <div class="form-group">
            {{Form::label('', 'Income')}} 

            {{Form::select('IncomeId', $incomes,null,['class'=>'form-control',,'id'=>'Income',  'onChange'=>'validate()'])}}
           </div>
           <div class="form-group">
                {{Form::label('', 'Expense')}}           
                {{Form::select('ExpenseId', $expenses,null,['class'=>'form-control', 'id'=>'Expense'])}}
               </div>
<div class="form-group">
           {{Form::label('SumOfMoney', 'Money')}}
    {{Form::text('SumOfMoney', '', ['class' =>'form-control'])}}
</div>
<div class="form-group">
        {{Form::label('Comments', 'Comments')}}
        {{Form::textarea('Comments', '', ['class' =>'form-control'])}}

        </div>
    {{Form::submit('Add', ['class'=>'btn btn-primary'])}}
{!! Form::close() !!}
@stop

我想在以下代碼中訪問“費用”或“收入”

JavaScript代碼：

function validate(){
    var ddlIncome = document.getElementById("income");
    var ddlExpence = document.getElementById("expense");

    var selectedValueIncome = ddlIncome.options[ddlIncome.selectedIndex].value;
    var selectedValueExpence = ddlExpence.options[ddlExpence.selectedIndex].value;

    if (selectedValueIncome != "selectincome"){
        document.getElementById("expense").disabled=true;
    }
    else if (selectedValueIncome != "selectexpence"){
        document.getElementById("income").disabled=true;
    }
}

Answer 1

我並做了一些簡單的假設。 看一下這個例子。

 var selector = document.querySelector('#selector'); var income = document.querySelector('#income'); var expense = document.querySelector('#expense'); function onChange() { expense.disabled = selector.value === 'selectoption' || selector.value === 'income'; income.disabled = selector.value === 'selectoption' || selector.value === 'expense'; } selector.onchange = onChange;

 <!DOCTYPE html> <html> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width"> <title>JS Bin</title> </head> <body> <select id="selector"> <option value="selectoption">Select an Option</option> <option value="income">Income</option> <option value="expense">Expense</option> </select> <select id="income" disabled="disabled"> <option value="selectincome">Select an Income</option> <option value="foo">Foo</option> <option value="bar">Bar</option> <option value="baz">Baz</option> </select> <select id="expense" disabled="disabled"> <option value="selectexpense">Select an Expense</option> <option value="foo">Foo</option> <option value="bar">Bar</option> <option value="baz">Baz</option> </select> </body> </html>

如何從javascript訪問Laravel中的數組中的值

問題描述

1 個解決方案

解決方案1
0 已采納 2018-08-17 14:00:57

如何從javascript訪問Laravel中的數組中的值

問題描述

1 個解決方案

解決方案1 0 已采納 2018-08-17 14:00:57

解決方案1
0 已采納 2018-08-17 14:00:57