Question

我正在使用表情符号。我只想在设置为空后设置textarea的值。但它没有用。我的代码在这里，

public class ApplicationProducts {

    private final List<Product> myAppProducts = Collections.synchronizedList(new ArrayList<>());

    private String firstPositionProductName;
    private int firstPositionProductAvailability;

    public void updateProducts(List<Product> products) {
        myAppProducts.addAll(products);
    }

    public boolean checkAndReplaceFirstProduct(Product product) {
        synchronized(myAppProducts) {
            if((product.getId()).equals(myAppProducts.get(0).getId())) {
                //calculations goes here to derive the below details
                firstPositionProductAVailability = 10;
                firstPositionProductName = abc;
                return true;
            } else {
                return false;
            }
        }
    }

    public boolean removeFirstProduct(Product product) {
        synchronized(myAppProducts) {
            if((product.getId()).equals(myAppProducts.get(0).getId()) &(firstPositionProductName.getId().equals(myAppProducts.get(0).getId())) {
                myAppProducts.remove(0);
                return true;
            } else {
                throw new IllegalStateException(" Lock taken by some other product : product can't be removed ");
            }
        }
    }
}

Answer 1

使用val()而不是text()，html()或empty()来清除textarea的价值：

$('#textarea').val('');

同样，使用它来设置值，而不是append()：

$('#textarea').val(dataTextArea + dataCode + ' ');

您的#text元素也是如此 - 假设它是input或textarea。您的代码的简化版本将是：

$('.tooltiptext .emoticon').click(function() {
    $in = $(this);

    setTimeout(function() {
        $('#text').val(function(i, v) {
            return v + $.emoticons.replace($in.html());
        });

        $('#textarea').val(function(i, v) {
            return v + $in.context.innerText + ' ';
        });
    }, 100);
});

我不能将Textarea设置为空

1 个答案: