Javascript 如何从表单中删除特定单词/空格

我目前正在用WordPress插件构建一个捐赠表单

我面临的唯一问题是，我只想在选项中显示价格，如“3欧元”€5欧元”€10欧元“不同”，但插件添加了一些单词和空格。我不想编辑插件本身的代码，因为这将在插件更新时删除

这是插件中的当前HTML：

<div class="donate-box"><ul id="form_624_field_2" label class required style="list-style-type:none;margin:0;"><li>
                        <label>
                            <input  type="radio" 
                                    onchange="mollie_forms_recurring_methods_624();mollie_forms_624_totals();" 
                                    data-frequency="months" 
                                    data-freq="iedere maanden" 
                                    data-pricetype="fixed" 
                                    data-price="5.00" 
                                    data-vat="" 
                                    name="rfmp_priceoptions_624" 
                                    value="2"
                                     checked> 
                            / (&euro; 5,00 iedere maanden)
                        </label>
                      </li><li>
                        <label>
                            <input  type="radio" 
                                    onchange="mollie_forms_recurring_methods_624();mollie_forms_624_totals();" 
                                    data-frequency="months" 
                                    data-freq="iedere maanden" 
                                    data-pricetype="fixed" 
                                    data-price="10.00" 
                                    data-vat="" 
                                    name="rfmp_priceoptions_624" 
                                    value="1"
                                    > 
                            / (&euro; 10,00 iedere maanden)
                        </label>
                      </li><li>
                        <label>
                            <input  type="radio" 
                                    onchange="mollie_forms_recurring_methods_624();mollie_forms_624_totals();" 
                                    data-frequency="months" 
                                    data-freq="iedere maanden" 
                                    data-pricetype="fixed" 
                                    data-price="15.00" 
                                    data-vat="" 
                                    name="rfmp_priceoptions_624" 
                                    value="3"
                                    > 
                            / (&euro; 15,00 iedere maanden)
                        </label>
                      </li><li>
                        <label>
                            <input  type="radio" 
                                    onchange="mollie_forms_recurring_methods_624();mollie_forms_624_totals();" 
                                    data-frequency="months" 
                                    data-freq="iedere maanden" 
                                    data-pricetype="open" 
                                    data-price="" 
                                    data-vat="" 
                                    name="rfmp_priceoptions_624" 
                                    value="4"
                                    > 
                            Different (iedere maanden)
                        </label>
                      </li></ul></div>

$('.donate-box ul li').text(function (i,t) {
    return t.slice(0, -72);
});

$('.donate-box ul li').each(function() {
    var $th = $(this);
    $th.text( $th.text().substr(99) );
});