[英]Get Element By Id not working | JavaScript
我有一個由 CardJs 提供支持的簡單結帳表格,但是在調用 onblur 時,MM/YY 字段不起作用:
我的js代碼:
var elCard = document.getElementById("number-cc");
var elMonth = document.getElementById("month-cc");
var elYear = document.getElementById("year-cc");
var elCvc = document.getElementById("cvc-cc");
elCard.onblur = createToken;
elMonth.onblur = createToken;
elYear.onblur = createToken;
elCvc.onblur = createToken;
我的html代碼:
<div class="card-js" data-icon-colour="#158CBA">
<input class="card-number form-control"
name="my-custom-form-field__card-number"
placeholder="Número do cartão"
autocomplete="off"
id="number-cc"
required>
<input class="name" id="name-cc" name="name"
placeholder="Nome impresso no cartão"
required>
<input class="expiry-month" placeholder="MM" id="month-cc" required>
<input class="expiry-year" placeholder="AA" id="year-cc" required>
<input class="cvc" id="cvc-cc" required>
</div>
其他表單字段( number-cc
和cvc-cc
)工作正常。 我想知道錯誤是否是因為此輸入 (MM/YY) 僅合並在一個字段中。 當頁面加載時,它會創建另一個沒有 id 屬性的input
,如下所示:
任何想法如何在這個 MM/YY 字段上實現onblur
?
CardJs: https : //github.com/CardJs/CardJs/blob/master/examples/02_customise-fields.html
謝謝!
編輯:我不知道我是否無法獲得查詢選擇器,因為如前所述, input class='expiry'
上方還有一些其他類 'expiry'。 這是頁面上加載的完整代碼:
編輯2:
發布完整的js代碼:
PagSeguroDirectPayment.setSessionId(session_id);
console.log(session_id);
var elName = document.getElementById("name-cc");
elName.onblur = createHash;
console.log(document.querySelector('input.expiry'));
document.querySelector('input.expiry').onblur = console.log('Hello');
var flag;
function createHash() {
PagSeguroDirectPayment.onSenderHashReady(function(response){
if(response.status == 'error') {
console.log(response.message);
return false;
}
var hash = response.senderHash; //Hash estará disponível nesta variável.
var elToken = document.getElementById("hash");
elToken.setAttribute("value", hash);
});
}
var elCard = document.getElementById("number-cc");
var elMonth = document.getElementById("month-cc");
var elYear = document.getElementById("year-cc");
var elExpiry = document.querySelector('input.expiry');
var elCvc = document.getElementById("cvc-cc");
elCard.onblur = createToken;
elExpiry.onblur = createToken;
elCvc.onblur = createToken;
function createToken() {
var sixDig = elCard.value.substring(0,7).replace(/\s+/g, '');
PagSeguroDirectPayment.getBrand({
cardBin: sixDig,
success: function(response) {
flag = response.brand.name;
},
error: function(response) {
console.log(response);
},
complete: function(response) {
console.log(response);
}
});
console.log('Card #: ' + elCard.value);
console.log('Mês: ' + elMonth.value);
console.log('Ano: ' + elYear.value);
console.log('CVC: ' + elCvc.value);
console.log('Bandeira: ' + flag);
console.log("Expiry: " + elExpiry.value);
PagSeguroDirectPayment.createCardToken({
cardNumber: elCard.value.replace(/ /g,''), // Número do cartão de crédito
brand: flag, // Bandeira do cartão
cvv: elCvc.value, // CVV do cartão
expirationMonth: elMonth.value, // Mês da expiração do cartão
expirationYear: 20 + elYear.value, // Ano da expiração do cartão, é necessário os 4 dígitos.
success: function(response) {
var token = response.card.token;
console.log('Token do cartão: ' + token);
var elToken = document.getElementById("token");
elToken.setAttribute("value", token);
},
error: function(response) {
console.log(response);
// Callback para chamadas que falharam.
},
complete: function(response) {
console.log(response);
// Callback para todas chamadas.
}
});
}
請注意input#month-cc和input#year-cc 如何具有type="hidden"
,因此它們在瀏覽器中不可見。
你真正想要針對onblur 的目標是:
const expiry = document.querySelector('input.expiry')
expiry.onblur = createToken
編輯:
如果還有其他元素可以使用input.expiry
定位,那么您必須更加具體以確保定位正確的元素。
你可以試試: document.querySelector('.expiry-container .expiry-wrapper div input.expiry')
如果這仍然不起作用,您可以使用document.querySelectorAll
,並找出您的目標輸入是哪個索引,並為其添加一個 onblur 事件偵聽器
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