js 禁止输入表情

function checkForEmoji(str) {
    const emojiRegex = /([\u{1F600}-\u{1F64F}]|[\u{1F300}-\u{1F5FF}]|[\u{1F680}-\u{1F6FF}]|[\u{2600}-\u{26FF}\u{2700}-\u{27BF}]|[\u{1F900}-\u{1F9FF}]|[\u{1F1E6}-\u{1F1FF}])/gu;
    return emojiRegex.test(str);
}

document.getElementById('inputField').addEventListener('input', function (e) {
    if (checkForEmoji(this.value)) {
        alert('输入不能包含表情符号！');
        this.value = this.value.replace(emojiRegex, '');
    }
});

<input type="text" id="inputField" pattern="[^(\uD83D\uDC00-\uD83D\uDE4F)]*" title="输入不能包含表情符号！">

document.getElementById('inputField').addEventListener('input', function (e) {
    this.value = this.value.replace(/([\u{1F600}-\u{1F64F}]|[\u{1F300}-\u{1F5FF}]|[\u{1F680}-\u{1F6FF}]|[\u{2600}-\u{26FF}\u{2700}-\u{27BF}]|[\u{1F900}-\u{1F9FF}]|[\u{1F1E6}-\u{1F1FF}])/gu, '');
});