[verification of ID number]

【 ID number verification 】

// Verify the legitimacy of the ID card 
IdentityCodeValid(code) {
    
				var city = {
    
					11: " Beijing ",
					12: " tianjin ",
					13: " hebei ",
					14: " shanxi ",
					15: " Inner Mongolia ",
					21: " liaoning ",
					22: " Ji Lin ",
					23: " heilongjiang  ",
					31: " Shanghai ",
					32: " jiangsu ",
					33: " Zhejiang ",
					34: " anhui ",
					35: " fujian ",
					36: " jiangxi ",
					37: " Shandong ",
					41: " Henan ",
					42: " hubei  ",
					43: " hunan ",
					44: " guangdong ",
					45: " guangxi ",
					46: " hainan ",
					50: " Chongqing ",
					51: " sichuan ",
					52: " guizhou ",
					53: " yunnan ",
					54: " Tibet  ",
					61: " shaanxi ",
					62: " gansu ",
					63: " qinghai ",
					64: " ningxia ",
					65: " xinjiang ",
					71: " Taiwan ",
					81: " Hong Kong ",
					82: " Macau ",
					91: " Abroad  "
				};
				var tip = "";
				var pass = true;

				if (!code || !/(^\d{15}$)|(^\d{17}(\d|X|x)$)/.test(code)) {
    
					tip = " The ID number is wrong ";
					pass = false;
				} else if (!city[code.substr(0, 2)]) {
    
					tip = " Wrong address encoding ";
					pass = false;
				} else {
    
					//18 The last check digit of the ID card must be verified 
					if (code.length == 18) {
    
						//∑(ai×Wi)(mod 11)
						var year = code.substr(6, 4), // ID card year 
							month = code.substr(10, 2), // ID month 
							date = code.substr(12, 2), // ID card date 
							sexNum = code.split(14, 3), // Gender 
							time = Date.parse(month + '-' + date + '-' + year), // Id date and time stamp date
							now_time = Date.parse(new Date()), // Current timestamp 
							dates = (new Date(year, month, 0)).getDate(); // Number of days of ID card in the current month 
						console.log(Number(year), " Get year , Control year is less than 1922 by false")
						let newyear = Number(year)
						if (newyear < 1922) {
    
							pass = false;
						}
						// Weighting factors 
						code = code.split('');
						var factor = [7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2];
						// Check bit 
						var parity = [1, 0, 'X', 9, 8, 7, 6, 5, 4, 3, 2];
						var sum = 0;
						var ai = 0;
						var wi = 0;
						for (var i = 0; i < 17; i++) {
    
							ai = code[i];
							wi = factor[i];
							sum += ai * wi;
						}
						var last = parity[sum % 11];
						if (parity[sum % 11] != code[17]) {
    
							tip = " Check bit error ";
							pass = false;
						}
					}
				}
				console.log(tip, " Wrong presentation ")
				console.log(pass, " Whether it is right ")
				return pass;
	},

Page using

let idcar = this.IdentityCodeValid(this.information.idCard)
	if (idcar == false) {
    
		wx.showToast({
    
			title: ' The length or format of your ID card is wrong ',
			icon: 'none',
			duration: 2000
		})
	return
}