diff --git a/src/main.rs b/src/main.rs
index e28e6406e..44810330d 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -28,6 +28,7 @@ use std::path::{Component, PathBuf};
 use std::process::exit;
 
 use nu_ansi_term::{AnsiStrings as ANSIStrings, Style};
+use output::OutputType;
 
 use crate::fs::feature::git::GitCache;
 use crate::fs::filter::GitIgnore;
diff --git a/src/output/cell.rs b/src/output/cell.rs
index 3aa4eb88f..46fe7e3f7 100644
--- a/src/output/cell.rs
+++ b/src/output/cell.rs
@@ -110,8 +110,8 @@ impl TextCell {
         let new_contents = self
             .contents
             .iter()
+            .filter(|w| !w.as_str().is_empty() && !w.as_str().trim().is_empty())
             .cloned()
-            .filter(|w| !w.is_empty() && !w.trim().is_empty())
             .collect::<Vec<_>>();
 
         TextCell {
diff --git a/src/output/details.rs b/src/output/details.rs
index f762147ff..78958cc50 100644
--- a/src/output/details.rs
+++ b/src/output/details.rs
@@ -267,14 +267,14 @@ impl<'a> Render<'a> {
                 None,
             );
 
-            write!(w, "{{\"files\":[")?;
+            write!(w, "\"files\":[")?;
             for (i, row) in self.iterate(rows).enumerate() {
                 write!(w, "\"{}\"", row.strings())?;
                 if (i + 1) < self.files.len() {
                     write!(w, ", ")?;
                 }
             }
-            writeln!(w, "]}}")
+            writeln!(w, "]")
         }
     }
 
diff --git a/src/output/grid.rs b/src/output/grid.rs
index f09ae3c94..86d08fb91 100644
--- a/src/output/grid.rs
+++ b/src/output/grid.rs
@@ -63,7 +63,7 @@ impl<'a> Render<'a> {
     // and treat it as just printing *quite* the same as lines
     pub fn render_json<W: Write>(mut self, w: &mut W) -> io::Result<()> {
         self.filter.sort_files(&mut self.files);
-        writeln!(w, "{{\"files\":[")?;
+        write!(w, "\"files\":[")?;
         for (i, file) in self.files.iter().enumerate() {
             let name_cell = self.file_style.for_file(file, self.theme).paint();
             write!(w, "\"{}\"", name_cell.strings())?;
@@ -71,7 +71,7 @@ impl<'a> Render<'a> {
                 write!(w, ",")?;
             }
         }
-        writeln!(w, "]}}")?;
+        writeln!(w, "]")?;
         Ok(())
     }
 }
diff --git a/src/output/grid_details.rs b/src/output/grid_details.rs
index e07266631..7a3e1c774 100644
--- a/src/output/grid_details.rs
+++ b/src/output/grid_details.rs
@@ -109,7 +109,7 @@ impl<'a> Render<'a> {
     // because grid-details has no tree view.
 
     pub fn render_json<W: Write>(self, _w: &mut W) -> io::Result<()> {
-        todo!("Implement json rendering");
+        unimplemented!("As it is made to be piped json with grid view, will not be implemented");
     }
 
     pub fn render<W: Write>(mut self, w: &mut W) -> io::Result<()> {
diff --git a/src/output/json.rs b/src/output/json.rs
index c02eef910..3caa8f3b4 100644
--- a/src/output/json.rs
+++ b/src/output/json.rs
@@ -4,7 +4,7 @@ This file is a special renderer for json
 
 use std::io::{self, Write};
 
-use super::{details::TableIter, TextCell};
+use super::{cell::TextCell, details::TableIter};
 
 #[derive(Debug, Clone)]
 struct JsonFile {
@@ -35,7 +35,7 @@ impl JsonFile {
             writeln!(w, "[")?;
         }
         for (i, cell) in self.cell.contents.iter().enumerate() {
-            if cell.is_empty() || cell.trim().is_empty() {
+            if cell.as_str().is_empty() || cell.as_str().trim().is_empty() {
                 continue;
             };
             if let Some(ref header) = header {
diff --git a/src/output/lines.rs b/src/output/lines.rs
index 02b583bd4..908d65153 100644
--- a/src/output/lines.rs
+++ b/src/output/lines.rs
@@ -37,7 +37,7 @@ impl<'a> Render<'a> {
 
     pub fn render_json<W: Write>(mut self, w: &mut W) -> io::Result<()> {
         self.filter.sort_files(&mut self.files);
-        write!(w, "{{\"files\":[")?;
+        write!(w, "\"files\":[")?;
         for (i, file) in self.files.iter().enumerate() {
             let name_cell = self.render_file(file);
             write!(w, "\"{}\"", ANSIStrings(&name_cell))?;
@@ -45,7 +45,7 @@ impl<'a> Render<'a> {
                 write!(w, ",")?;
             }
         }
-        writeln!(w, "]}}")?;
+        writeln!(w, "]")?;
 
         Ok(())
     }