> For the complete documentation index, see [llms.txt](https://guides.noloco.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://guides.noloco.io/data/collections/formulas/examples.md).

# Examples

A collection of common formula patterns. Field references appear in **green** in the examples below.

For the full reference, see the [Operators](/data/collections/formulas/operators.md) pages. For setup steps, see [Creating a formula field](/data/collections/formulas/creating-formula-fields.md).

### Joining text fields

Create a full name from a first name and last name, adding a space in between only if both fields have a value:

*<mark style="color:green;">**`first name`**</mark>*` `` `` ``& ``IF(OR(ISBLANK( `*<mark style="color:green;">**`first name`**</mark>*`),ISBLANK(`*<mark style="color:green;">**`last name`**</mark>*`)),""," ")`` &`` ``_<mark style="color:green;">**`last name\`\*\*\_

### Replacing part of a text field

Replace `"-old"` with `" (discontinued)"` for a nicer record view:

`SUBSTITUTE(`<mark style="color:green;">`name`</mark>`, "-old", " (discontinued)")`

### Adding days to a date

Create a deadline one week after an important date:

`TODATE(`<mark style="color:green;">`important date`</mark>` ``+ 7)`

### Adding working days to a date

Create a deadline several working days after an important date, taking holidays and weekends into account:

`TODATE(WORKDAY(important date, 3, {"2024-06-03","2024-12-25"}))`

### Calculations

Calculate gross sales:

<mark style="color:green;">`(number sold`</mark>`-`<mark style="color:green;">`number refunded)`</mark>`*`<mark style="color:green;">`price`</mark>


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