微信小程序表单验证-蒲公英云

微信小程序表单验证

心已赠人 2023-06-17 08:57 28阅读 0赞

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
};