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docs(dsl): document expression operators #249

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docs(dsl): document expression operators
dogancanbakir Oct 7, 2026
17d6055
docs(dsl): note when {{ }} expressions are evaluated
dogancanbakir Oct 7, 2026
b041af7
fix examples
Mzack9999 Oct 7, 2026
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18 changes: 18 additions & 0 deletions templates/reference/helper-functions.mdx
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Expand Up @@ -5,6 +5,24 @@ icon: "function"
iconType: "solid"
---

## Operators

Expressions in `{{ }}`, DSL matchers, extractors and variables support these operators:

| Operator | Description | Example | Output |
| ------------------------------ | ----------------------------------------- | ---------------------------------- | ------ |
| `==` `!=` `>` `>=` `<` `<=` | Comparison | `1 >= 1` | `true` |
| `=~` `!~` | Matches / does not match a regex | `"hello" =~ "^h.*o$"` | `true` |
| `&&` `\|\|` `!` | Logical and, or, not | `200 == 200 && len("abcd") > 3` | `true` |
| `in` | Value is in a list | `200 in (200, 301)` | `true` |
| `+` `-` `*` `/` `%` `**` | Arithmetic; `+` also concatenates strings | `2 ** 10` | `1024` |
| `&` `\|` `^` `<<` `>>` `~` | Bitwise | `6 & 3` | `2` |
| `? :` | Ternary | `200 == 200 ? "up" : "down"` | `up` |

In `{{ }}`, an expression is evaluated only when it uses a helper function or a variable, so `{{2 == 2}}` alone is kept as text. Template values inside `{{ }}` are strings: convert them with `to_number` before arithmetic, for example `{{to_number(n) * 2}}`.

## Functions

Here is the list of all supported helper functions can be used in the RAW requests / Network requests.

| Helper function | Description | Example | Output |
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