Vue-- phone number, verification code (Settings button to disable 60s countdown)

　　Vue recently doing a project, through front-end mobile phone number, verification code, access code buttons to set the countdown 60s (after the click, click again in a minute not). Look at renderings:

　　After entering the phone number in the correct format, "Get Code" button before clicking; click on "Get Code" button to enter the 60s countdown, the effect is as follows:

　　Renderings already have, then on the code!

html

<el-button @click="getCode()" :class="{'disabled-style':getCodeBtnDisable}" :disabled="getCodeBtnDisable">{{codeBtnWord}}</el-button>

Data data

Data () { 
     return { 
        loginForm: { 
            phoneNumber: '', 
            verificationCode: '', 
        }, 
        codeBtnWord: 'Get codes', // get codes button text 
        waitTime: 61, // get codes button failure time 
    } 
}

Computed Property computed

computed: {
    // 用于校验手机号码格式是否正确
    phoneNumberStyle(){
        let reg = /^1[3456789]\d{9}$/
        if(!reg.test(this.loginForm.phoneNumber)){
            return false
        }
        return true
    },
    // 控制获取验证码按钮是否可点击
    getCodeBtnDisable:{
        get(){
            if(this.waitTime == 61){
                if(this.loginForm.phoneNumber){
                    return false
                }
                return true
            }
            return true
        },
        // 注意：因为计算属性本身没有set方法，不支持在方法中进行修改，而下面我要进行这个操作，所以需要手动添加
        set(){}  
    }
}

　　关于上面给计算属性添加set方法，可以参照（https://www.cnblogs.com/belongs-to-qinghua/p/11936476.html）

css设置不可点击时置灰

.el-button.disabled-style {
    background-color: #EEEEEE;
    color: #CCCCCC;
}

mothods中添加获取验证码方法

getCode(){
    if(this.phoneNumberStyle){
        let params = {}
        params.phone = this.loginForm.phoneNumber
        // 调用获取短信验证码接口
        axios.post('/sendMessage',params).then(res=>{
            res = res.data
            if(res.status==200) {
                this.$message({
                    message: '验证码已发送，请稍候...',
                    type: 'success',
                    center:true
                })
            }
        })
        // 因为下面用到了定时器，需要保存this指向
        let that = this
        that.waitTime--
        that.getCodeBtnDisable = true
        this.codeBtnWord = `${this.waitTime}s 后重新获取`
        let timer = setInterval(function(){
            if(that.waitTime>1){
                that.waitTime--
                that.codeBtnWord = `${that.waitTime}s 后重新获取`
            }else{
                clearInterval(timer)
                that.codeBtnWord = '获取验证码'
                that.getCodeBtnDisable = false
                that.waitTime = 61
            }
        },1000)
    }
}

　　通过上面的代码，就可以实现了，如有错误，敬请指正！

Vue-- phone number, verification code (Settings button to disable 60s countdown)

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