Shows the enclosed content only if `value` is set and not empty. If it isn't, nothing is shown, or the content after `[else]` is shown when there is one. A value of `0` counts as set.
`[if_set]` works the same as `[is_set]`. To nest a check inside another `[is_set]`, use `[sub_is_set]`, which also works the same way.
**Shortcode:**
```js
[is_set]
```
**Attributes:**
**Attributes** | **Description**
:--- | ---
`[value]` | **(Required)** The value to check. Accepts a `{{field}}` token, the output of another shortcode, or any text.
**Code Example:**
```js
[is_set value="{{phone}}"]Call us at {{phone}}.[/is_set]
```
**Output:**
If `{{phone}}` is "555-0123":
```
Call us at 555-0123.
```
If `{{phone}}` is empty, nothing is shown.
**Else Example:**
Module templates are the most common place to use `[is_set]`, since `{{field}}` tokens are filled in before the shortcode runs.
```js
[is_set value="{{photo}}"]
[else]
[/is_set]
```
**Output:**
If `{{photo}}` is empty:
```html
```