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[英]hidden inputs with same name: how to send only the values of selected checkboxes?
[英]How to send only inputs with value?
我有一個表格:
<form id="carForm">
<div class="form-field">
<label for="">Year:</label><br>
<input id="year" type="number" placeholder="1990" required>
</div>
<div class="form-field">
<label for="">Mileage(km):</label><br>
<input id="mileage" type="number" placeholder="30000" required>
</div>
<div class="form-field">
<label for="">Brand:</label><br>
<input id="brand" type="text" placeholder="Mercedes" maxlength="20" required>
</div>
<div class="form-field">
<label for="">Maintenance:</label><br>
<input id="maintenance" type="number" placeholder="0000" >
</div>
<div class="form-field">
<label for="">Cooling system:</label><br>
<input id="cooling" type="number" placeholder="0000" >
</div>
<div class="form-field">
<label for="">Total amount:</label><br>
<input id="total" type="number" placeholder="0000" disabled>
</div>
<div class="submit-btn">
<input type="submit" value="Add">
</div>
</form>
和一個發送方法:
let dataToSend = {
repair: {
year: yearField.value,
total_amount: totalField.value,
mileage: mileageField.value,
brand: brandField.value,
items: {
maintenance: maintenanceField.value,
cooling_system: coolingField.value,
}
axios({
method: "post",
url: 'url',
data: {
dataToSend
},
如何僅發送包含該值的字段? 例如:冷卻系統輸入值為1.000,維護輸入值為0。如何只發送那個(冷卻系統)字段?
在 ES6 中,你可以做
...(condition && {key: value})
以你為例:
const coolingField = {value: 1};
const maintenanceField = {value: 0};
let dataToSend = {
repair: {
items: {
...(coolingField.value > 0 && { maintenance: coolingField.value }),
...(maintenanceField.value > 0 && { cooling_system: maintenanceField.value })
}
}
};
這是一種方法。
let dataToSend = { repair: { year: 15, total_amount: '', mileage: 232, brand: 'asa', items: { maintenance: '', cooling_system: 12, } } } // Remove empty key values const clearEmpties = (obj) => { for (var propName in obj) { if (typeof obj[propName] == "object") clearEmpties(obj[propName]) if (obj[propName] === null || obj[propName] === undefined || obj[propName] ==='') delete obj[propName]; } return obj } console.log(clearEmpties(dataToSend)) /* axios({ method: "post", url: 'url', data: { clearEmpties(dataToSend) }) */
你可以使用類似的條件
if(maintenanceField.value > 0 && coolingFieldValue <= 0 ){
items: {
maintenance: maintenanceField.value
}
}
elseif(maintenanceField.value <= 0 && coolingFieldValue > 0){
items: {
cooling_system: coolingField.value
}
else{
items: {
maintenance: maintenanceField.value,
cooling_system: coolingField.value,
}
}
}
要發送帶有值的輸入,您可以使用以下條件檢查輸入字段是否為 null
items: {
...(coolingField.value > 0 && { maintenance: coolingField.value }),
...(maintenanceField.value > 0 && { cooling_system: maintenanceField.value })
}
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