Update expressions.js

I found a tiny typo.
pola-rs · Jul 8, 2023 · 2278e6f · 2278e6f
1 parent d5decdd
commit 2278e6f
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/docs/src/node/getting-started/expressions.js b/docs/src/node/getting-started/expressions.js
@@ -62,7 +62,7 @@ console.log(df2);
 // --8<-- [start:groupby2]
 df2
   .groupBy("y")
-  .agg(pl.col("*").sum().alias("count"), pl.col("*").sum().alias("sum"));
+  .agg(pl.col("*").count().alias("count"), pl.col("*").sum().alias("sum"));
 // --8<-- [end:groupby2]
 
 // --8<-- [start:combine]