# Types

## Boolean

Use the `wire.toBoolean` function to determine if a value of any type is [truthy](https://developer.mozilla.org/en-US/docs/Glossary/Truthy).  Use the second parameter to return a default if the value passed in is not able to be evaluated.

The following example sets the `bool` variable to `true`because the string `"true"` will evaluate to `true`.

```javascript
const bool = wire.toBoolean("true", false);
```

The following example also sets the `bool` variable to `true` because the value `null` passed in cannot be evaluated as a proper Boolean.  The function defaults to the second parameter `true`.  If the second parameter was not passed in, the function would return `false`.

```javascript
const bool = wire.toBoolean(null, true);
```

## Numeric

To determine whether a value of any type is a number, use the `wire.inNumeric` function.  

```javascript
const number = wire.isNumeric("1234");
```

## Guid

To create a universal unique identifier, use the `wire.guid` function.

```javascript
const id = wire.guid();

// id = f09a1e51-7dbf-49c2-b252-ff16c3b42a7a
```

### Short Guid

To create a 6 character random alphanumeric value, use the `guidShort` function.

```javascript
const id = wire.guidShort();

// id = nzcp6z
```


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