docs: add documentation for starts and endswith

website/data/language-nav-data.json

@@ -319,6 +319,10 @@
             "title": "<code>chomp</code>",
             "href": "/language/functions/chomp"
           },
+          {
+            "title": "<code>endswith</code>",
+            "href": "/language/functions/endswith"
+          },
           {
             "title": "<code>format</code>",
             "href": "/language/functions/format"
@@ -352,6 +356,10 @@
             "title": "<code>split</code>",
             "href": "/language/functions/split"
           },
+          {
+            "title": "<code>startswith</code>",
+            "href": "/language/functions/startswith"
+          },
           {
             "title": "<code>strrev</code>",
             "href": "/language/functions/strrev"

website/docs/language/functions/endswith.mdx

@@ -0,0 +1,30 @@
+---
+page_title: endswith - Functions - Configuration Language
+description: |-
+  The endswith function takes a given string and a given suffix value,
+  and returns true if the first given string contains the given value at its end.
+---
+
+# `endswith` Function
+
+`endswith` takes a given string and a given suffix value,
+and returns true if the first given string contains the given value at its end.
+
+```hcl
+endswith(string, suffix)
+```
+
+## Examples
+
+```
+> endswith("hello world", "world")
+true
+
+> endswith("hello world", "hello")
+false
+```
+
+## Related Functions
+
+- [`startswith`](/language/functions/startswith) takes a given string and a given prefix value,
+  and returns true if the first given string contains the given value at its beginning

website/docs/language/functions/startswith.mdx

@@ -0,0 +1,30 @@
+---
+page_title: startsswith - Functions - Configuration Language
+description: |-
+  The startswith function takes a given string and a given prefix value,
+  and returns true if the first given string contains the given value at its beginning.
+---
+
+# `startswith` Function
+
+`startswith` takes a given string and a given prefix value,
+and returns true if the first given string contains the given value at its beginning.
+
+```hcl
+startswith(string, prefix)
+```
+
+## Examples
+
+```
+> startswith("hello world", "hello")
+true
+
+> startswith("hello world", "world")
+false
+```
+
+## Related Functions
+
+- [`endswith`](/language/functions/endswith) takes a given string and a given suffix value,
+  and returns true if the first given string contains the given value at its end

website/layouts/language.erb

@@ -370,6 +370,10 @@
                 <a href="/docs/language/functions/chomp.html">chomp</a>
               </li>
 
+              <li>
+                <a href="/docs/language/functions/endswith.html">endswith</a>
+              </li>
+
               <li>
                 <a href="/docs/language/functions/format.html">format</a>
               </li>
@@ -406,6 +410,10 @@
                 <a href="/docs/language/functions/split.html">split</a>
               </li>
 
+              <li>
+                <a href="/docs/language/functions/startswith.html">startswith</a>
+              </li>
+
               <li>
                 <a href="/docs/language/functions/strrev.html">strrev</a>
               </li>