feat: added arrayFunctions and rename Izuku to Frame

1 files changed, 56 insertions, 0 deletions

diff --git a/src/helpers/arrayFunctions.ts b/src/helpers/arrayFunctions.ts
new file mode 100644
index 0000000..7e78e29
--- /dev/null
+++ b/src/helpers/arrayFunctions.ts
@@ -0,0 +1,56 @@
+/**
+ * isArrayOfType check if the array contains only the specified type
+ * @param array: the array to be checked
+ * @param type: the type to be checked
+ * @returns true if the array contains only the specified type
+ */
+
+export function isArrayOfType(array: any[], type: string): boolean {
+  return array.filter((i) => typeof i === type).length === array.length;
+}
+
+/**
+ * range - returns an array of numbers from start to end
+ * @param start: the start of the range
+ * @param end: the end of the range
+ * @param step: the step of the range
+ * @returns an array of numbers from start to end
+ */
+
+export function range(
+  start: number,
+  end: number,
+  step = 1,
+  remove?: Array<number>
+): Array<number> {
+  // Check if start, end and step are integers
+  if (
+    !Number.isInteger(start) ||
+    !Number.isInteger(end) ||
+    !Number.isInteger(step)
+  ) {
+    throw new Error('range parameters must be integers');
+  }
+  const rangeArray: Array<number> = [];
+  // Start must be less than end
+  if (start > end) {
+    throw new Error('starting value must be less than end value');
+  }
+
+  // Step must be greater than 0
+  if (step <= 0) {
+    throw new Error('step must be greater than 0');
+  }
+
+  // If remove is specified, remove the values from the range
+  if (remove) {
+    for (let i = start; i <= end; i += step) {
+      if (!remove.includes(i)) {
+        rangeArray.push(i);
+      }
+    }
+  }
+
+  // return the range
+  return rangeArray;
+}