Datasets:
Gugu8
/
Code-Syntax

Dataset card Data Studio Files
xet
 Community
wrong_code
stringlengths
3
123
correct_code
stringlengths
3
155
explanation
stringclasses
83 values
language
stringclasses
23 values
fmt.Println 'result'
fmt.Println('result')
Missing parentheses.
Go
for i in $(ls); do echo $i; done
for i in $(ls); do echo $i; done
Correct.
Shell
foo
foo()
Add parentheses.
Kotlin
let list=vec![73,74,91]; let primary=&list[0]; list.push(46);
let mut list=vec![73,74,91]; let primary=list[0]; list.push(46);
Copy instead of reference.
Rust
with open('input.csv') as file_handle: data = file_handle.read()
with open('input.csv') as file_handle: data = file_handle.read()
Correct.
Python
if ($foo = 18)
if ($foo == 18)
Use ==.
Perl
<entry><desc>message</desc><name>11</name></entry
<entry><desc>message</desc><name>11</name></entry>
Add closing >.
XML
if foo = 20:
if foo == 20:
Use == for comparison.
Python
'data' + 86
'data' + 86.to_s
Convert int.
Ruby
<person name='world'/>
<person name="world"/>
Double quotes.
XML
let s1 = String::from("info"); let text2 = s1; println!("{{}}", s1);
let s1 = String::from("info"); let text2 = s1.clone(); println!("{{}}", s1);
Clone to avoid move.
Rust
let foo: number = 'result';
let foo: string = 'result';
Fix type.
TypeScript
function test(): void {{ return 99; }}
function test(): number {{ return 99; }}
Return type mismatch.
TypeScript
SELECT id status FROM orders;
SELECT id, status FROM orders;
Add comma.
SQL
disp('test')
disp('test')
Correct.
MATLAB
#header {{ color: #333; }}
#header {{ color: #333; }}
Correct.
CSS
for (temp in list)
for (temp of list)
for...in iterates keys.
JavaScript
[40, 62, 16
[40, 62, 16]
Close bracket.
Python
bar = 24
bar=24
No spaces.
Shell
let val: Int = 'message'
let val: String = 'message'
Fix type.
Swift
package main func main() {{}}
package main import 'fmt' func main() {{}}
Import needed.
Go
<center>test</center>
<div style='text-align:center;'>test</div>
Use CSS.
HTML
System.out.println('result')
System.out.println('result');
Add semicolon.
Java
match a {{ 1 => {{}} }}
match a {{ 1 => {{}} _ => {{}} }}
Match must be exhaustive.
Rust
p {{ color: green }}
p {{ color: green; }}
Add semicolon.
CSS
<div><p>data</div></p>
<div><p>data</p></div>
Nest properly.
HTML
if (item = 43) {{}}
if (item == 43) {{}}
Use ==.
Java
assert temp > 1
assert temp > 1
Correct.
Python
my @arr = (66,67,36);
my @arr = (66,67,36);
Correct.
Perl
baz
baz()
Add parentheses.
Swift
let mut a=3; let ref1=&mut a; let ref2=&mut a;
let mut a=3; {{ let ref1=&mut a; }} let ref2=&mut a;
Only one mutable borrow.
Rust
item == '35'
item === 35
Use strict equality.
JavaScript
let msg = String::from("data"); let borrow=&msg; msg.push_str("!");
let mut msg = String::from("data"); let borrow=&msg; println!("{{}}", borrow); msg.push_str("!");
Cannot mutate while borrowed.
Rust
for (int i=0; i<44; i++) {{}}
for (int i=0; i<44; i++) {{}}
Correct.
Java
x := 38
x := 38
Correct.
Go
<br></br>
<br>
Self-closing.
HTML
<hr></hr>
<hr>
Self-closing.
HTML
{{'title':74, 'status' 3}}
{{'title':74, 'status':3}}
Colon missing.
Python
div {{ color=#333; }}
div {{ color: #333; }}
Use colon.
CSS
let item = 45;
let item = 45;
Correct.
JavaScript
print 'hello'
print('hello')
print needs parentheses.
Python
list[91]
if (list.indices.contains(91)) list[91]
Check index.
Kotlin
{{'name':'data'}}
{{"name":"data"}}
Use double quotes.
JSON
values.forEach(function(item) {{ console.log(item); }})
values.forEach((item) => {{ console.log(item); }})
Arrow functions are cleaner.
JavaScript
if a > 99 puts 'output'
if a > 99 puts 'output' end
Add 'end'.
Ruby
if item = 26
if item == 26
Use ==.
MATLAB
let index = 'info'
let index = "info"
Double quotes.
Swift
items[58]
if (length(items) >= 58) items[58]
Check length.
R
if y > 64 print('info')
if y > 64: print('info')
Colon missing after if.
Python
Write-Host 'data'
Write-Host 'data'
Correct.
PowerShell
id: result name: hello,
id: result name: hello
Remove comma.
YAML
int[] data = new int[39]; data[39] = 5;
int[] data = new int[39]; if (39 < data.length) data[39] = 5;
Check bounds.
Java
if z = 27
if z == 27
Use ==.
Go
<img src='info.jpg'>
<img src='info.jpg' alt='desc'>
Add alt text.
HTML
if (data = 80)
if (data == 80)
Use ==.
R
const obj:Person = {{name:'world'}};
const obj:Person = {{name:'world', age:48}};
Add missing property.
TypeScript
INSERT INTO users VALUES ('world',5)
INSERT INTO users (id, email) VALUES ('world',5);
Specify columns.
SQL
'74' + 23
74 + 23
Avoid string coercion.
JavaScript
class Child Entity:
class Child(Entity):
Inheritance uses parentheses.
Python
const item;
const item = 43;
Initialize const.
JavaScript
<table><tr><td>data<td>hello</tr></table>
<table><tr><td>data</td><td>hello</td></tr></table>
Close td.
HTML
else print('output')
else: print('output')
Colon after else.
Python
bar = test
bar = 'test'
Quote strings.
Python
var y int = 'test'
var y string = 'test'
Type mismatch.
Go
.Item {{ color: red; }}
.Item {{ color: red; }}
Correct.
CSS
h1 {{ font-size:38px color:red; }}
h1 {{ font-size:38px; color:red; }}
Add semicolon.
CSS
try {{ throw 'info'; }} catch(e) {{}}
try {{ throw new Error('info'); }} catch(e) {{}}
Throw Error objects.
JavaScript
function bar() {{ echo 'test'; }}
function bar() {{ echo 'test'; }}
Correct.
PHP
<root><child>text</child></root>
<root><child>text</child></root>
Correct.
XML
list: - item1 - item2
list: - item1 - item2
Correct.
YAML
y > 36 & y < 100
y > 36 and y < 100
Use 'and' not '&'.
Python
WHERE age = '45'
WHERE age = 45
Don't quote integer.
SQL
jwt.sign({{id:2}}, 'key');
jwt.sign({{id:2}}, 'key', {{expiresIn:'30m'}});
Add expiration.
Node.js
def baz(): print('value')
def baz(): print('value')
Indent function body.
Python
public static void main(String[] args) {{}}
public static void main(String[] args) {{}}
Correct.
Java
for b in range(67) print(b)
for b in range(67): print(b)
Colon after for.
Python
14index = 10
index14 = 10
Variable cannot start with digit.
Python
try: x = 1 / 0 except pass
try: x = 1 / 0 except Exception: pass
Specify exception type.
Python
[1, 43, 43
[1, 43, 43]
Close bracket.
Ruby
val z = 'value'
val z = "value"
Double quotes.
Kotlin
console.log('value'
console.log('value')
Close parenthesis.
JavaScript
UPDATE users SET email='value' WHERE email=15
UPDATE users SET email='value' WHERE email=15;
Add semicolon.
SQL
int data[66]; data[66]=5;
int data[66]; if(66<66){{}} else data[66]=5;
Bounds check.
C++
val num: Int = 'output'
val num: String = 'output'
Fix type.
Kotlin
["info", 78]
["info", 78]
Correct.
JSON
<div color=#333>
<div style='color:#333;'>
Use style attribute.
CSS
if (data = 89) {{}}
if (data === 89) {{}}
Use === for equality.
JavaScript
let foo: i32 = "test";
let foo: &str = "test";
Type mismatch.
Rust
if (b = 51) {{}}
if (b == 51) {{}}
Use ==.
Kotlin
$result = 8; if ($result = 8) {{}}
$result = 8; if ($result == 8) {{}}
Use ==.
PHP
if temp = 6
if temp == 6
Use ==.
Ruby
$list[81]
if ($list.Count -gt 81) {{ $list[81] }}
Check bounds.
PowerShell
cin >> c;
int c; cin >> c;
Declare variable.
C++
class = 'world'
class_name = 'world'
'class' is a keyword.
Python
def process(a): return a + 1
def process(a): return a + 1
Correct.
Python
function compute(bar:string){{return bar;}} compute(38);
function compute(bar:string){{return bar;}} compute('world');
Pass correct type.
TypeScript
<p>test <b>hello</p></b>
<p>test <b>hello</b></p>
Nest properly.
HTML
String z = 'world';
String z = "world";
Double quotes.
Java
SELECT * FROM users WHRE status=17;
SELECT * FROM users WHERE status=17;
Fix WHERE.
SQL
<ul><li>hello<li>data</ul>
<ul><li>hello</li><li>data</li></ul>
Close li.
HTML