vue實現輸入密碼時顯示明文，過一秒變爲密文

        <el-form :model="changePassword" ref="ruleForm" label-width="100px">
            <el-form-item label="新密碼：" prop="password">
                <el-input
                    @input.native="onInput($event, 'newPassword')"
                    type="text"
                    v-model="newPassword"
                    maxlength="12"
                    placeholder="6-12位字符，支持數字、大小寫英文" >
                </el-input>
            </el-form-item>
            <el-form-item label="重複新密碼：" prop="repeatPassword">
                <el-input
                    @input.native="onInput($event, 'repeatPassword')"
                    type="text"
                    maxlength="12"
                    v-model="repeatPassword"
                    placeholder="再次輸入登錄密碼">
                </el-input>
            </el-form-item>
        </el-form>

js代碼

data () {
    return {
        verifyData: {},