wip: objectTrimmer

utils/object-trimmer.ts

@@ -0,0 +1,26 @@
+const objectTrimmer = <T>(
+  objectList: T[],
+  length: number,
+  {
+    participatingFields = [],
+    trimFromStart = true
+  }: {
+    participatingFields: (keyof T)[],
+    trimFromStart?: boolean
+  }) => {
+  let participatingLength = 0
+  let i = objectList.length - 1
+  while (i >= 0) {
+    participatingLength = 0
+    for (const field of participatingFields) {
+      participatingLength += JSON.stringify(objectList[i][field]).length
+      if (participatingLength > length) {
+        break
+      }
+    }
+    i--
+  }
+  return trimFromStart ? objectList.slice(i + 1) : objectList.slice(0, i + 1)
+}
+
+export {objectTrimmer}