Add searchable select with 'startsWith' mode and update filtering logic

apps/website/screens/components/select/code/SelectCodePage.tsx

@@ -255,6 +255,22 @@ const sections = [
               <TableCode>false</TableCode>
             </td>
           </tr>
+          <tr>
+            <td>
+              <DxcFlex direction="column" gap="var(--spacing-gap-xs)" alignItems="baseline">
+                <StatusBadge status="new" />
+                searchByStartsWith
+              </DxcFlex>
+            </td>
+            <td>
+              <TableCode>boolean</TableCode>
+            </td>
+            <td>
+              Defines the search mode when searchable is true. If true, matches options that start with the search text.
+              If false, matches options that contain the search text anywhere in their label.
+            </td>
+            <td>false</td>
+          </tr>
           <tr>
             <td>size</td>
             <td>

packages/lib/src/select/Select.stories.tsx

@@ -35,6 +35,13 @@ const singleOptions = [
   { label: "Option 04", value: "4" },
 ];
 
+const startsWithSingleOptions = [
+  { label: "Option 01", value: "1" },
+  { label: "This is option 02", value: "2" },
+  { label: "Is option 03", value: "3" },
+  { label: "And Option 04", value: "4" },
+];
+
 const single_options_virtualized = [
   ...Array.from({ length: 10000 }, (_, i) => ({
     label: `Option ${String(i + 1).padStart(2, "0")}`,
@@ -593,6 +600,19 @@ const SearchableSelect = () => (
   </ExampleContainer>
 );
 
+const startsWithSearchableSelect = () => (
+  <ExampleContainer expanded>
+    <Title title="Searchable contains select" theme="light" level={4} />
+    <DxcSelect
+      label="Select Label"
+      searchable
+      searchByStartsWith
+      options={startsWithSingleOptions}
+      placeholder="Choose an option"
+    />
+  </ExampleContainer>
+);
+
 const SearchValue = () => (
   <ExampleContainer expanded>
     <Title title="Searchable select with value" theme="light" level={4} />
@@ -740,6 +760,14 @@ export const Searchable: Story = {
   },
 };
 
+export const StartsWithSearchable: Story = {
+  render: startsWithSearchableSelect,
+  play: async ({ canvasElement }) => {
+    const canvas = within(canvasElement);
+    await userEvent.type(await canvas.findByRole("combobox"), "t");
+  },
+};
+
 export const SearchableWithValue: Story = {
   render: SearchValue,
   play: async ({ canvasElement }) => {

packages/lib/src/select/Select.tsx

@@ -191,6 +191,7 @@ const DxcSelect = forwardRef<RefType, SelectPropsType>(
       options,
       placeholder = "",
       searchable = false,
+      searchByStartsWith = false,
       size = "medium",
       tabIndex = 0,
       value,
@@ -217,7 +218,10 @@ const DxcSelect = forwardRef<RefType, SelectPropsType>(
     const translatedLabels = useContext(HalstackLanguageContext);
 
     const optionalItem = useMemo(() => ({ label: placeholder, value: "" }), [placeholder]);
-    const filteredOptions = useMemo(() => filterOptionsBySearchValue(options, searchValue), [options, searchValue]);
+    const filteredOptions = useMemo(
+      () => filterOptionsBySearchValue(options, searchValue, searchByStartsWith),
+      [options, searchValue, searchByStartsWith]
+    );
     const lastOptionIndex = useMemo(
       () => getLastOptionIndex(options, filteredOptions, searchable, optional, multiple, enableSelectAll),
       [options, filteredOptions, searchable, optional, multiple, enableSelectAll]

packages/lib/src/select/types.ts

@@ -91,6 +91,12 @@ type CommonProps = {
    * If true, enables search functionality.
    */
   searchable?: boolean;
+  /**
+   * Defines the search mode when searchable is true.
+   * If true, matches options that start with the search text.
+   * If false, matches options that contain the search text anywhere in their label.
+   */
+  searchByStartsWith?: boolean;
   /**
    * Size of the component.
    */

packages/lib/src/select/utils.ts

@@ -51,20 +51,31 @@ export const canOpenListbox = (options: Props["options"], disabled: boolean) =>
 /**
  * Filters the options by the search value.
  */
-export const filterOptionsBySearchValue = (options: Props["options"], searchValue: string): Props["options"] =>
-  options.length > 0
+export const filterOptionsBySearchValue = (
+  options: Props["options"],
+  searchValue: string,
+  searchByStartsWith: Props["searchByStartsWith"] = false
+): Props["options"] => {
+  const matchesSearch = (label: string, search: string, searchByStartsWith: boolean) => {
+    const upperLabel = label.toUpperCase();
+    const upperSearch = search.toUpperCase();
+    return searchByStartsWith ? upperLabel.startsWith(upperSearch) : upperLabel.includes(upperSearch);
+  };
+
+  return options.length > 0
     ? isArrayOfGroupedOptions(options)
       ? options.map((optionGroup) => {
           const group = {
             label: optionGroup.label,
             options: optionGroup.options.filter((option) =>
-              option.label.toUpperCase().includes(searchValue.toUpperCase())
+              matchesSearch(option.label, searchValue, searchByStartsWith)
             ),
           };
           return group;
         })
-      : options.filter((option) => option.label.toUpperCase().includes(searchValue.toUpperCase()))
+      : options.filter((option) => matchesSearch(option.label, searchValue, searchByStartsWith))
     : [];
+};
 
 /**
  * Returns the index of the last option, depending on several conditions.