var logLevel = "info"; function dummy() {} function shouldLog(level) { var shouldLog = (logLevel === "info" && level === "info") || (["info", "warning"].indexOf(logLevel) >= 0 && level === "warning") || (["info", "warning", "error"].indexOf(logLevel) >= 0 && level === "error"); return shouldLog; } function logGroup(logFn) { return function(level, msg) { if (shouldLog(level)) { logFn(msg); } }; } module.exports = function(level, msg) { if (shouldLog(level)) { if (level === "info") { console.log(msg); } else if (level === "warning") { console.warn(msg); } else if (level === "error") { console.error(msg); } } }; /* eslint-disable node/no-unsupported-features/node-builtins */ var group = console.group || dummy; var groupCollapsed = console.groupCollapsed || dummy; var groupEnd = console.groupEnd || dummy; /* eslint-enable node/no-unsupported-features/node-builtins */ module.exports.group = logGroup(group); module.exports.groupCollapsed = logGroup(groupCollapsed); module.exports.groupEnd = logGroup(groupEnd); module.exports.setLogLevel = function(level) { logLevel = level; };