Feat: arraySlice replace variable

src/backend/variables/builtin/array/array-slice.ts

@@ -0,0 +1,43 @@
+import { ReplaceVariable, Trigger } from "../../../../types/variables";
+import { OutputDataType, VariableCategory } from "../../../../shared/variable-constants";
+
+const model : ReplaceVariable = {
+    definition: {
+        handle: "arraySlice",
+        description: "Returns a slice of an array",
+        usage: "arraySlice[array, start, end]",
+        categories: [VariableCategory.ADVANCED],
+        possibleDataOutput: [OutputDataType.TEXT]
+    },
+    evaluator: (
+        trigger: Trigger,
+        subject: string | unknown[],
+        start?: string | number,
+        end?: string | number
+    ) : unknown[] => {
+        if (typeof subject === 'string' || subject instanceof String) {
+            try {
+                subject = JSON.parse(`${subject}`);
+            } catch (ignore) {
+                return [];
+            }
+        }
+        if (!Array.isArray(subject)) {
+            return [];
+        }
+
+        start = start ? Number(start) : 0;
+        if (Number.isNaN(start)) {
+            start = 0;
+        }
+
+        end = end ? Number(end) : subject.length;
+        if (Number.isNaN(end)) {
+            end = subject.length;
+        }
+
+        return [...subject].slice(start, end);
+    }
+};
+
+export default model;

src/backend/variables/builtin/array/index.ts

@@ -1,5 +1,5 @@
 import arrayAdd from './array-add';
-import arrayElemenet from './array-element';
+import arrayElement from './array-element';
 import arrayFilter from './array-filter';
 import arrayFindIndex from './array-find-index';
 import arrayFind from './array-find';
@@ -11,6 +11,7 @@ import arrayRandomItem from './array-random-item';
 import arrayRemove from './array-remove';
 import arrayReverse from './array-reverse';
 import arrayShuffle from './array-shuffle';
+import arraySlice from './array-slice';
 
 // Deprecated
 import rawArrayAdd from './raw-array-add';
@@ -27,7 +28,7 @@ import rawArrayShuffle from './raw-array-shuffle';
 
 export default [
     arrayAdd,
-    arrayElemenet,
+    arrayElement,
     arrayFilter,
     arrayFindIndex,
     arrayFind,
@@ -39,6 +40,7 @@ export default [
     arrayRemove,
     arrayReverse,
     arrayShuffle,
+    arraySlice,
 
     // Deprecated
     rawArrayAdd,