feat: function to save to JSON

2 files changed, 46 insertions, 0 deletions

diff --git a/src/index.ts b/src/index.ts
index 394fe93..8214328 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -9,6 +9,7 @@ import {
 import { show, head, tail } from './lib/display';
 import { getSize, info } from './lib/info';
 import { flatten, fromJSON, fromCSV, searchValue } from './lib/data';
+import { toJSON } from './lib/export';
 import { isArrayOfType, range, flattenJSON } from './helpers/arrayFunctions';
 
 class Izuku {
@@ -81,6 +82,7 @@ class Izuku {
     return new Izuku(rowdata, this.columns);
   };
   public title = title;
+  public toJSON = toJSON;
 }
 
 class Frame extends Izuku {
diff --git a/src/lib/export.ts b/src/lib/export.ts
new file mode 100644
index 0000000..137e534
--- /dev/null
+++ b/src/lib/export.ts
@@ -0,0 +1,44 @@
+import { Frame } from '../index';
+import { writeFileSync } from 'fs';
+
+/**
+ * toJSON - converts frame to JSON file, takes a path to save the file. Path is optional. If no path is provided, the file is saved in the current directory
+ * @param frame: the frame to be converted
+ * @param path: @optional the path to save the file
+ * @param filename: @optional the name of the file
+ */
+export function toJSON(this: Frame, path?: string, filename?: string): void {
+  const data = this.rowdata;
+  const header = this.columns;
+
+  // create a json object, with keys as the header and values as the row data
+  const json = data.map((row: any[]) => {
+    const obj: any = {};
+    for (let i = 0; i < header.length; i++) {
+      if (row[i]) {
+        obj[header[i]] = row[i];
+      }
+    }
+    return obj;
+  });
+
+  // save the json object to a file
+  if (path) {
+    writeFileSync(
+      `${path}/${filename ? `${filename}` : 'data'}.json`,
+      JSON.stringify(json)
+    );
+  } else {
+    writeFileSync(
+      `${filename ? `${filename}` : 'data'}.json`,
+      JSON.stringify(json)
+    );
+  }
+
+  // console.log the file path
+  console.log(
+    `${filename ? `${filename}` : 'data'}.json saved at ${
+      path ? path : 'root level'
+    }.`
+  );
+}