> For the complete documentation index, see [llms.txt](https://docs.wem.io/platform/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.wem.io/platform/wemreference/operators/less-than-or-equal.md).

# Less-than-or-equal <=

{% hint style="info" %}
The Less Than Or Equal operator **`<=`** is used to compare two values and to check whether a value is less than, or equal to the other.\
The `<=` operator can be used to compare values of the following types:

* text
* number
* duration
* datetime
* concept
* reference

This function is SQL compatible. For more information about SQL compatibility, see our [documentation](/platform/wemreference/sql-compatibility.md).
{% endhint %}

{% hint style="success" %}
The result of the `<=` operator is true or false.\
The result is <mark style="color:green;">True</mark> when`Value1` is less than or equal to `Value2`.\
The result is <mark style="color:red;">False</mark> when `Value1` is **not** less than or equal to `Value2`.

* number <= number&#x20;
* text <= text returns (alphabetical comparison, case insensitive)
* datetime <= datetime&#x20;
* duration <= duration&#x20;
* concept <= concept (applies to the order of concepts)
* reference <= reference&#x20;

If any of the operands is unknown, the result is also unknown.\
If operands are not of the same type, the "*<mark style="color:red;">expression type mismatch</mark>*" warning is displayed.
{% endhint %}

<details>

<summary><mark style="color:blue;">value1</mark> &#x3C;= <mark style="color:blue;">value2</mark> </summary>

`35 <= 35` \
\&#xNAN;*=> Yes*

`1234 <= 345`\
\&#xNAN;*=> No*

`"text1" <= "text2"`\
\&#xNAN;*=> Yes*

`Today() <= UTCNow()`\
\&#xNAN;*=> Yes*

`'12d' <= '350m'`\
\&#xNAN;*=> No*

`'Product categories'.'Monitor' <= 'Product categories'.'Phone'`\
\&#xNAN;*=> Yes (in the order of concepts, Monitor comes first)*

`[Data.CurrentUser] <= [OtherUser]`\
\&#xNAN;*=> Yes (if current-user-id <= other-user-id)*

</details>


---

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