import validUrl = require('valid-url'); function testIsUri() { validUrl.isUri("https://github.com/"); } function testIsHttpUri() { validUrl.isHttpUri("https://github.com/"); } function testIsHttpsUri() { validUrl.isHttpsUri("https://github.com/"); } function testIsWebUri() { validUrl.isWebUri("https://github.com/"); } testIsUri(); testIsHttpUri(); testIsHttpsUri(); testIsWebUri();