evaluate

evaluate

========

Evaluate your variables, with a simples function.

This is a simple way to check if a variable is setted and evaluate a value default depends the type of the variable.

Instalation

npm install --save evaluate

How to use

evaluate(vari, type, default)

The evaluate function need a variable and a type to works. In other cases it will throw an error. You can send a default value to the variable if the current variable is undefined.

var evaluate = require('evaluate');

function(vari, varDate) {
	vari = evaluate(vari, 'string');
	varDate = evaluate(varDate, 'date');
  varInt = evaluate(varInt, 'integer', 10);

	console.log(vari, varDate, varInt); // '', Thu Sep 17 2015 15:04:56 GMT-0300 (BRT), 10 
}

Supported Types

Number

evaluate(vari, 'number', default); // If vari is undefined and default is not send  the returned value is 0

String

evaluate(vari, 'string', default); // If vari is undefined and default is not send  the returned value is ''

Boolean

evaluate(vari, 'boolean', default); // If vari is undefined and default is not send  the returned value is false

Date

evaluate(vari, 'date', default); // If vari is undefined and default is not send  the returned value is the current date

Object

evaluate(vari, 'object', default); // If vari is undefined and default is not send  the returned value is {}

Array

evaluate(vari, 'array', default); // If vari is undefined and default is not send the returned value is []