params-check example code

const ParamsCheck = require('params-check') const funcContainer = ParamsCheck.funcContainer; // test adapter to check number of params send to function const adapter = (params, schema) => { if (params.length === schema.numberOfParams) { let index = 0; return { error: !(params.filter((p, i) => { if (p) return true; index = i + 1; return false; }).length === schema.numberOfParams) ? `param${index} is missing!` : false } } return {error: 'missing params!'} }; // create instance with adapter for validation const paramsCheck = new ParamsCheck(adapter); // ---------------------------------------------- //from: const some_function1 = (param1, param2) => { try { if (!param1) throw new Error('param1 is missing'); if (!param2) throw new Error('param2 is missing'); return 'Cool all params arrive!' + param1 + param2 } catch (error) { return error.message; } } //to: // ---------------------------------------------- const testedFunc = paramsCheck.withValidation("my test func", { numberOfParams: 2 }, (param1, param2) => 'Cool all params arrive!' + param1 + param2); const some_function2 = (param1, param2) => funcContainer(() => testedFunc(param1, param2), (error) => error.message) // ---------------------------------------------- console.log(some_function1("!", "!")) console.log(some_function2("!", "!")) console.log(some_function1("!")) console.log(some_function2("!"))