I have created a Javascript with awesome-phonenumber npm package.

  • index.js
const yargs = require('yargs'); var PhoneNumber = require( 'awesome-phonenumber' ); const argv = yargs .usage('Usage: $0 -n [num]') .command('login', '(login)', { number: { description: 'number', type: 'number', } }) .option('phoneNumber', { alias: 'n', description: 'number', type: 'charecter', }) .option('json', { alias :'json', description: 'To print output in json', type: 'boolean', }) .help() .alias('help', 'h') .argv; if (argv._[0] == 'login') { console.log ("Login"); process.exit(); } if (argv.n) { var pn = PhoneNumber( argv.n, 'IN' ); if (!pn.isValid( )) { console.log("! Invalid number"); return false; } else { console.log(JSON.stringify( pn, null, 4 )); } } 

when i run node index.js -n +919912345678 or node index.js -n 09912345678 it is working fine.

PS C:\Users\anil kumar jilla\truecaller-nodejs> node index.js -n +919912345678 { "number": { "input": "+919912345678", "international": "+91 99123 45678", "national": "099123 45678", "e164": "+919912345678", "rfc3966": "tel:+91-99123-45678", "significant": "9912345678" }, "regionCode": "IN", "valid": true, "possible": true, "canBeInternationallyDialled": true, "type": "mobile", "possibility": "is-possible" } 

when i run node index.js -n 9912345678. it is showing this error.

PS C:\Users\anil kumar jilla\truecaller-nodejs> node "c:\Users\anil kumar jilla\truecaller-nodejs\index.js" PS C:\Users\anil kumar jilla\truecaller-nodejs> node index.js -n 9912345678 C:\Users\anil kumar jilla\truecaller-nodejs\node_modules\awesome-phonenumber\lib\index.js:528 function V(a,b){if(!(this instanceof V))return new V(a,b);if("string"===typeof a)var c=!1;else try{bb(a),c=!0}catch(e){c=!1}let d;if(!c&&"string"!==typeof a)throw Error("Invalid phone number, expected a string");if(!c&&null!=b&&"string"!==typeof b)throw Error("Invalid region code, expected a string");c||(a=a.trim(),b&&"+"===a.charAt(0)&&(b=null),b||({ea:b=null,parsed:d}=Db(a)));this.g={number:{},regionCode:b,valid:!1,possible:!1};if(c)this.h=a;else{this.h=null;this.g.number.input=a;if(!b){this.g.possibility= ^ Error: Invalid phone number, expected a string at new V (C:\Users\anil kumar jilla\truecaller-nodejs\node_modules\awesome-phonenumber\lib\index.js:528:164) at V (C:\Users\anil kumar jilla\truecaller-nodejs\node_modules\awesome-phonenumber\lib\index.js:528:48) at Object.<anonymous> (C:\Users\anil kumar jilla\truecaller-nodejs\index.js:33:14) at Module._compile (internal/modules/cjs/loader.js:999:30) at Object.Module._extensions..js (internal/modules/cjs/loader.js:1027:10) at Module.load (internal/modules/cjs/loader.js:863:32) at Function.Module._load (internal/modules/cjs/loader.js:708:14) at Function.executeUserEntryPoint [as runMain] (internal/modules/run_main.js:60:12) at internal/main/run_main_module.js:17:47 

I created a test.js to see the code is working or not

  • test.js
var PhoneNumber = require( 'awesome-phonenumber' ); const number = "9912345678" var pn = PhoneNumber(number , 'IN' ); if (!pn.isValid()) { console.log("! Invalid number"); return false; } else { console.log(JSON.stringify( pn, null, 4 )); } 

then it is working

i dont know what the mistake i did

2 Answers

Just convert your input in string, it will work.

if (argv.s.toString()) { var pn = PhoneNumber( argv.s.toString(), 'IN' ); if (!pn.isValid( )) { console.log("!invalid number"); return false; } else { console.log(JSON.stringify( pn, null, 4 )); } } 

+91 or 0091 are the region codes for India. The 091 or +01 are strings, whereas in your second failing example it is not.

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