js过滤/判断表情符号

var regRule = /\uD83C[\uDF00-\uDFFF]|\uD83D[\uDC00-\uDE4F]/g;this             if(this.value.match(regRule)) {ast                 // this.value = this.value.replace(/\uD83C[\uDF00-\uDFFF]|\uD83D[\uDC00

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