Question

我正在学习Jquery，我试图检查一个span是否有某个类，这是问题的span：

  <span class="recaptcha-checkbox goog-inline-block
                 recaptcha-checkbox-unchecked recaptcha-checkbox-checked
                 rc-anchor-checkbox recaptcha-checkbox-expired" role="checkbox"
        aria-checked="false" id="recaptcha-anchor" tabindex="0"
        dir="ltr" aria-labelledby="recaptcha-anchor-label">
    <div class="recaptcha-checkbox-border" role="presentation" style=""></div>
    <div class="recaptcha-checkbox-borderAnimation" role="presentation" style=""></div>
    <div class="recaptcha-checkbox-spinner" role="presentation"></div><div class="recaptcha-checkbox-spinnerAnimation" role="presentation"></div>
    <div class="recaptcha-checkbox-checkmark" role="presentation"></div>
  </span>

我们的想法是检查<span>是否有类recaptcha-checkbox-checked

关于documentation：

＆＃34;如果将类分配给元素，则.hasClass（）方法将返回true，即使其他类也是如此。＆＃34;

所以我有以下内容：

captchaStatus: function () {
    return $("#recaptcha-anchor").hasClass("recaptcha-checkbox-checked")

}

即使元素具有类，它也始终返回false。

编辑：

var AddressValidatorHelper = {
    AddressValidator: function () {
        if (!AddressValidatorHelper.changedAddress && AddressValidatorHelper.clickedVerify
            && AddressValidatorHelper.captchaStatus() && ValidatorControls.validate()) {
            AddressValidatorHelper.noNormHide();
            return true;

        }
        else {
            if (!AddressValidatorHelper.alreadyAppended) {
                AddressValidatorHelper.noNormAppend();
                AddressValidatorHelper.noNormShow();
                AddressValidatorHelper.alreadyAppended = true;
            }
            if (AddressValidatorHelper.changedAddress) {
                AddressValidatorHelper.noNormShow();
            }
            if (AddressValidatorHelper.clickedVerify) {
                AddressValidatorHelper.noNormHide();
            }

            return false;
        }
    },

    noNormAppend: function () { $("#verDom").append("<label class='control-label' id='validarDom' style='color='#a94442'>Valide su domicilio</label>") },
    noNormShow: function () { $("#validarDom").show() },
    noNormHide: function () { $("#validarDom").hide() },
    changedAddress: false,
    clickedVerify: false,
    alreadyAppended: false,
    captchaStatus: function () {
        return $("#recaptcha-anchor").hasClass("recaptcha-checkbox-checked")

    }
}

所以我打电话给AddressValidatorHelper.captchaStatus()

Answer 1

请将您的js代码封装在jquery ready function

中

$(function(){
 //your has class checking code here 
})

JQuery hasClass不起作用

1 个答案: