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js處理input輸入的emoji

var ranges = [
              '\ud83c[\udf00-\udfff]',
              '\ud83d[\udc00-\ude4f]',
              '\ud83d[\ude80-\udeff]'
            ]
var remark = remark.replace(new RegExp(ranges.join('|'), 'g'), '').replace(/\s+/g, '');