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

``javascript
npm install --save evaluate
`

How to use

$3

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.

`javascript
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

$3


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

String

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

Boolean

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

Date

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

Object

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

Array

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