微信小程序表单验证_小程序 validformdata 验证

由于微信小程序表单组件没有自带的验证功能，因此要针对每一项进行判断比较繁琐 因此封装了一个表单验证js, 具体验证规则根据自己所用到的进行添加,具体案例代码片段点击链接微信小程序表单验证完整代码片段
或者在微信小程序开发工具导入ID qGhpXdmZ7ydI

const form = {
    /*  @formData 要验证的表单数据
        @rules 验证规则 required必填
    ***/
    validation(formData, rules) {
        for (let item of rules) {
            let key = item.name;
            let ruleArr = item.rule;
            let msgArr = item.msg;
            if (!key || !ruleArr || ruleArr.length === 0 || !msgArr || msgArr.length === 0) continue
            for (let i = 0; i < ruleArr.length; i++) {
                let ruleItem = ruleArr[i];
                let msg = msgArr[i];
                if (!ruleItem || !msg) continue

                let value = null;
                if (ruleItem.indexOf(":") != -1) {
                    let temp = ruleItem.split(":");
                    ruleItem = temp[0];
                    value = temp[1];
                }

                let isError = false;
                switch (ruleItem) {
                case "required":
                    isError = form.isNull(formData[key]);
                    break;
                case "isEmail":
                    isError = !form.isEmail(formData[key]);
                    break;
                case "isTel": 
                    isError = !form.isTel(formData[key]);
                    break;
                case "isSpecialWord":
                    isError = !form.isSpecialWord(formData[key]);
                    break;
                case "minLength":
                    isError = !form.minLength(formData[key], value)
                    break;
                case "maxLength":
                    isError = !form.maxLength(formData[key], value)
                    break;
                default:
                    break;
                }

                if (isError) {
                    wx.showToast({
                        title: msg,
                        icon: 'none'
                    })
                    return false
                }
            }
        }
        return true;
    },
    isNull(value) {
        if (typeof value == 'object') {
            for (let prop in value) {
                if (typeof value[prop] == 'object') {
                    for (let prop2 in value[prop]) {
                        if (value[prop][prop2] === null || value[prop][prop2] === '' || value[prop][prop2] === undefined) {
                            return true
                        } else {
                            return false
                        }
                    }
                }
            }
        }
        return (value === null || value === '' || value === undefined) ? true : false;
    },
    isEmail(value) {
        return /^[a-z0-9]+([._\\-]*[a-z0-9])*@([a-z0-9]+[-a-z0-9]*[a-z0-9]+.){1,63}[a-z0-9]+$/.test(value);
    },
    isTel(value) {
        return /^(?:13\d|14\d|15\d|16\d|17\d|18\d|19\d)\d{5}(\d{3}|\*{3})$/.test(value);
    },
    isSpecialWord(value) {
        //是否包含特殊字符
        let regEn = /[`~!@#$%^&*()_+<>?:"{},.\/;'[\]]/,
            regCn = /[·！#￥（——）：；“”‘、，|《。》？、【】[\]]/;
        return (regEn.test(value) || regCn.test(value)) ? false : true
    },
    minLength(value, min) {
        return value.length >= Number(min)
    },
    maxLength(value, max) {
        return value.length <= Number(max)
    }
};
module.exports = {
    validation: form.validation
};
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