diff --git a/packages/csv-parse/samples/api.stream.js b/packages/csv-parse/samples/api.stream.js
index a8ccc8f2..26fb5391 100644
--- a/packages/csv-parse/samples/api.stream.js
+++ b/packages/csv-parse/samples/api.stream.js
@@ -29,7 +29,7 @@ parser.on('end', function(){
   );
 });
 // Write data to the stream
-parser.write("root:x:0:0:root:/root:/bin/bash\n");
-parser.write("someone:x:1022:1022::/home/someone:/bin/bash\n");
+parser.write('root:x:0:0:root:/root:/bin/bash\n');
+parser.write('someone:x:1022:1022::/home/someone:/bin/bash\n');
 // Close the readable stream
 parser.end();
diff --git a/packages/csv-parse/samples/mixed.input_stream.js b/packages/csv-parse/samples/mixed.input_stream.js
index 8228eed0..79fb494f 100644
--- a/packages/csv-parse/samples/mixed.input_stream.js
+++ b/packages/csv-parse/samples/mixed.input_stream.js
@@ -15,7 +15,7 @@ const parser = parse({
   );
 });
 // Write data to the stream
-parser.write("root:x:0:0:root:/root:/bin/bash\n");
-parser.write("someone:x:1022:1022::/home/someone:/bin/bash\n");
+parser.write('root:x:0:0:root:/root:/bin/bash\n');
+parser.write('someone:x:1022:1022::/home/someone:/bin/bash\n');
 // Close the readable stream
 parser.end();
diff --git a/packages/csv-parse/samples/option.bom.js b/packages/csv-parse/samples/option.bom.js
index 1a5cf0a8..86726484 100644
--- a/packages/csv-parse/samples/option.bom.js
+++ b/packages/csv-parse/samples/option.bom.js
@@ -2,7 +2,7 @@
 import assert from 'assert';
 import { parse } from 'csv-parse/sync';
 
-const data = "\ufeffa,b,c\n";
+const data = '\ufeffa,b,c\n';
 const records = parse(data, {
   bom: true
 });
diff --git a/packages/csv-parse/samples/option.comment.js b/packages/csv-parse/samples/option.comment.js
index b8447717..4b0d3cbc 100644
--- a/packages/csv-parse/samples/option.comment.js
+++ b/packages/csv-parse/samples/option.comment.js
@@ -11,6 +11,6 @@ const records = parse(data, {
   comment: "#"
 });
 assert.deepStrictEqual(records, [
-  [ "hello" ],
-  [ "world" ]
+  [ 'hello' ],
+  [ 'world' ]
 ]);
diff --git a/packages/csv-parse/samples/option.delimiter.array.js b/packages/csv-parse/samples/option.delimiter.array.js
index 03fc137a..f05f15e2 100644
--- a/packages/csv-parse/samples/option.delimiter.array.js
+++ b/packages/csv-parse/samples/option.delimiter.array.js
@@ -8,14 +8,14 @@ Yellow \t   "255" :: "255" ::"0"
 Hot Pink \t "255" :: 105   :: "180"`;
 
 const output = parse(input, {
-  delimiter: ["::","\t"],
+  delimiter: ['::','\t'],
   trim: true,
   columns: true,
 }).map((rec) => {
-  let indent = "";
+  let indent = '';
   return Object.entries(rec).map(([key, value]) => {
     const row = `${indent}${key}: <${value}>`;
-    indent = (indent.length === 0 ? "    " : indent);
+    indent = (indent.length === 0 ? '    ' : indent);
     return row;
   }).join('\n');
 }).join('\n');
diff --git a/packages/csv-parse/samples/tsv.js b/packages/csv-parse/samples/tsv.js
index 3fa11cd9..d0b5e8a2 100644
--- a/packages/csv-parse/samples/tsv.js
+++ b/packages/csv-parse/samples/tsv.js
@@ -2,7 +2,7 @@
 import assert from 'assert';
 import { parse } from 'csv-parse';
 
-parse("1	2	3\ra	b	c", {delimiter: '\t'}, function(err, data){
+parse('1	2	3\ra	b	c', {delimiter: '\t'}, function(err, data){
   if(err) throw err;
   assert.deepStrictEqual(data, [ [ '1', '2', '3' ], [ 'a', 'b', 'c' ] ]);
 });
diff --git a/packages/csv-stringify/samples/api.stream.js b/packages/csv-stringify/samples/api.stream.js
index c92a84b0..1207f96c 100644
--- a/packages/csv-stringify/samples/api.stream.js
+++ b/packages/csv-stringify/samples/api.stream.js
@@ -22,8 +22,8 @@ stringifier.on('error', function(err){
 stringifier.on('finish', function(){
   assert.equal(
     data.join(''),
-    "root:x:0:0:root:/root:/bin/bash\n" +
-    "someone:x:1022:1022::/home/someone:/bin/bash\n"
+    'root:x:0:0:root:/root:/bin/bash\n' +
+    'someone:x:1022:1022::/home/someone:/bin/bash\n'
   );
 });
 // Write records to the stream
diff --git a/packages/csv-stringify/samples/option.bom.js b/packages/csv-stringify/samples/option.bom.js
index 771e0136..cf0d2167 100644
--- a/packages/csv-stringify/samples/option.bom.js
+++ b/packages/csv-stringify/samples/option.bom.js
@@ -7,4 +7,4 @@ const data = stringify([
 ], {
   bom: true
 });
-assert.deepStrictEqual(data, "\ufeffa,b,c\n");
+assert.deepStrictEqual(data, '\ufeffa,b,c\n');
diff --git a/packages/csv-stringify/samples/option.cast.date.js b/packages/csv-stringify/samples/option.cast.date.js
index ae0c84ec..9eda8f34 100644
--- a/packages/csv-stringify/samples/option.cast.date.js
+++ b/packages/csv-stringify/samples/option.cast.date.js
@@ -17,7 +17,7 @@ stringify([{
 }, function(err, data) {
   assert.equal(
     data,
-    "foo,1970-01-01T00:00:00.000Z\n" +
-    "bar,1971-01-01T00:00:00.000Z\n"
+    'foo,1970-01-01T00:00:00.000Z\n' +
+    'bar,1971-01-01T00:00:00.000Z\n'
   );
 });
diff --git a/packages/csv-stringify/samples/option.columns_nested.js b/packages/csv-stringify/samples/option.columns_nested.js
index 0b279ac5..22a922f4 100644
--- a/packages/csv-stringify/samples/option.columns_nested.js
+++ b/packages/csv-stringify/samples/option.columns_nested.js
@@ -22,5 +22,5 @@ stringify([{
   'an_object.field_4',
   'an_array[1].field_2'
 ]}, (err, records) => {
-  assert.equal(records, "1_val_2,1_val_1\n2_val_2,2_val_1\n");
+  assert.equal(records, '1_val_2,1_val_1\n2_val_2,2_val_1\n');
 });
diff --git a/packages/csv-stringify/samples/option.columns_undefined.js b/packages/csv-stringify/samples/option.columns_undefined.js
index e6dfe873..1dc97145 100644
--- a/packages/csv-stringify/samples/option.columns_undefined.js
+++ b/packages/csv-stringify/samples/option.columns_undefined.js
@@ -10,7 +10,7 @@ stringify([
 }, function(err, data){
   assert.equal(
     data,
-    "XXX XXXX,XXXX,\n" +
-    "YYY YYYY,YYYY,\n"
+    'XXX XXXX,XXXX,\n' +
+    'YYY YYYY,YYYY,\n'
   );
 });
diff --git a/packages/csv-stringify/samples/option.header.js b/packages/csv-stringify/samples/option.header.js
index c91d4e6a..c45897c3 100644
--- a/packages/csv-stringify/samples/option.header.js
+++ b/packages/csv-stringify/samples/option.header.js
@@ -10,8 +10,8 @@ stringify([
 }, function(err, data){
   assert.equal(
     data,
-    "year,phone\n" +
-    "XXXX,XXX XXXX\n" +
-    "YYYY,YYY YYYY\n"
+    'year,phone\n' +
+    'XXXX,XXX XXXX\n' +
+    'YYYY,YYY YYYY\n'
   );
 });