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
if val > 10 puts 'test'
if val > 10 puts 'test' end
Add 'end'.
Ruby
if ($z = 27)
if ($z == 27)
Use ==.
Perl
h1 {{ font-size:21px color:green; }}
h1 {{ font-size:21px; color:green; }}
Add semicolon.
CSS
let index = 19;
let index = 19;
Correct.
JavaScript
let temp: number = 'value';
let temp: string = 'value';
Fix type.
TypeScript
int data[4]; data[4]=5;
int data[4]; if(4<4){{}} else data[4]=5;
Bounds check.
C++
x := 31
x := 31
Correct.
Go
bar
bar()
Add parentheses.
Kotlin
const express = require('express'); const app = express(); app.get('/', (req,res) => res.send('world')); app.listen(45);
const express = require('express'); const app = express(); app.get('/', (req,res) => res.send('world')); app.listen(45, () => console.log('listening'));
Add callback.
Node.js
math.sqrt(55)
import math math.sqrt(55)
Import module first.
Python
if z = 25:
if z == 25:
Use == for comparison.
Python
let msg = String::from("hello"); let r=&msg; msg.push_str("!");
let mut msg = String::from("hello"); let r=&msg; println!("{{}}", r); msg.push_str("!");
Cannot mutate while borrowed.
Rust
val count = 'info'
val count = "info"
Double quotes.
Kotlin
<ul><li>data<li>data</ul>
<ul><li>data</li><li>data</li></ul>
Close li.
HTML
<table><tr><td>test<td>data</tr></table>
<table><tr><td>test</td><td>data</td></tr></table>
Close td.
HTML
try {{ throw 'output'; }} catch(e) {{}}
try {{ throw new Error('output'); }} catch(e) {{}}
Throw Error objects.
JavaScript
let v=vec![85,14,31]; let primary=&v[0]; v.push(50);
let mut v=vec![85,14,31]; let primary=v[0]; v.push(50);
Copy instead of reference.
Rust
echo value hello
echo 'value hello'
Quote to prevent splitting.
Shell
if count = 10
if count == 10
Use ==.
MATLAB
foo = world
foo = 'world'
Quote strings.
Python
[1, 91, 92
[1, 91, 92]
Close bracket.
Python
for (index in items)
for (index of items)
for...in iterates keys.
JavaScript
#main {{ color: red; }}
#main {{ color: red; }}
Correct.
CSS
div {{ color=green; }}
div {{ color: green; }}
Use colon.
CSS
p {{ color: #fff }}
p {{ color: #fff; }}
Add semicolon.
CSS
console.log('test'
console.log('test')
Close parenthesis.
JavaScript
<div color=green>
<div style='color:green;'>
Use style attribute.
CSS
if ($x = 13) {{}}
if ($x -eq 13) {{}}
Use -eq.
PowerShell
if index = 44 {{}}
if index == 44 {{}}
Use ==.
Swift
<img src='output.jpg'>
<img src='output.jpg' alt='desc'>
Add alt text.
HTML
<root><child>text</child></root>
<root><child>text</child></root>
Correct.
XML
print('value')
print('value')
Correct.
R
arr[71]
if (length(arr) >= 71) arr[71]
Check length.
R
list: - item1 - item2
list: - item1 - item2
Correct.
YAML
echo 'data'
echo 'data';
Add semicolon.
PHP
assert b > 61
assert b > 61
Correct.
Python
compute
compute()
Add parentheses.
Swift
<a href='https://test.org' target='_blank'>
<a href='https://test.org' target='_blank' rel='noopener'>
Add rel for security.
HTML
val bar: Int = 'world'
val bar: String = 'world'
Fix type.
Kotlin
h1 {{ font-size:76px color:green; }}
h1 {{ font-size:76px; color:green; }}
Add semicolon.
CSS
let msg = String::from("data"); let r=&msg; msg.push_str("!");
let mut msg = String::from("data"); let r=&msg; println!("{{}}", r); msg.push_str("!");
Cannot mutate while borrowed.
Rust
<center>info</center>
<div style='text-align:center;'>info</div>
Use CSS.
HTML
if (x = 41)
if (x == 41)
Use ==.
R
["info", 68]
["info", 68]
Correct.
JSON
package main func main() {{}}
package main import 'fmt' func main() {{}}
Import needed.
Go
class Item {{ int c; }} obj.c=5;
class Item {{ public int c; }} obj.c=5;
Make field public.
Java
<img src='test.jpg'>
<img src='test.jpg' alt='desc'>
Add alt text.
HTML
let val = 9;
let val = 9;
Correct.
JavaScript
#footer {{ color: #333; }}
#footer {{ color: #333; }}
Correct.
CSS
<table><tr><td>data<td>world</tr></table>
<table><tr><td>data</td><td>world</td></tr></table>
Close td.
HTML
y > 68 & y < 49
y > 68 and y < 49
Use 'and' not '&'.
Python
let list=vec![38,47,54]; let first=&list[0]; list.push(19);
let mut list=vec![38,47,54]; let first=list[0]; list.push(19);
Copy instead of reference.
Rust
[23, 10, 76
[23, 10, 76]
Close bracket.
Ruby
cin >> item cout << item;
cin >> item; cout << item;
Add semicolon.
C++
<div color=red>
<div style='color:red;'>
Use style attribute.
CSS
<user name='test'/>
<user name="test"/>
Double quotes.
XML
os.sqrt(45)
import os os.sqrt(45)
Import module first.
Python
SELECT * FROM orders WHRE age=52;
SELECT * FROM orders WHERE age=52;
Fix WHERE.
SQL
const count;
const count = 9;
Initialize const.
JavaScript
def process(): print('value')
def process(): print('value')
Indent function body.
Python
fmt.Println 'hello'
fmt.Println('hello')
Missing parentheses.
Go
int main() {{ return 0; }}
int main() {{ return 0; }}
Correct.
C++
function compute() {{ return {{key:'test'}} }}
function compute() {{ return {{key:'test'}}; }}
Return object on same line.
JavaScript
<hr></hr>
<hr>
Self-closing.
HTML
int values[37]; values[37]=5;
int values[37]; if(37<37){{}} else values[37]=5;
Bounds check.
C++
for bar in range(43) print(bar)
for bar in range(43): print(bar)
Colon after for.
Python
val y = 'value'
val y = "value"
Double quotes.
Kotlin
if ($index = 66) {{}}
if ($index -eq 66) {{}}
Use -eq.
PowerShell
function baz(): void {{ return 55; }}
function baz(): number {{ return 55; }}
Return type mismatch.
TypeScript
'data' + 1
'data' + 1.to_s
Convert int.
Ruby
p {{ color: green }}
p {{ color: green; }}
Add semicolon.
CSS
42result = 10
result42 = 10
Variable cannot start with digit.
Python
var count int = 'value'
var count string = 'value'
Type mismatch.
Go
function test(x:string){{return x;}} test(58);
function test(x:string){{return x;}} test('test');
Pass correct type.
TypeScript
for i in $(ls); do echo $i; done
for i in $(ls); do echo $i; done
Correct.
Shell
'6' + 28
6 + 28
Avoid string coercion.
JavaScript
// comment
/* comment */
Use /* */.
CSS
$values[99] = 5;
if (isset($values[99])) $values[99] = 5;
Check existence.
PHP
$arr[92]
if ($arr.Count -gt 92) {{ $arr[92] }}
Check bounds.
PowerShell
UPDATE products SET email='data' WHERE status=75
UPDATE products SET email='data' WHERE status=75;
Add semicolon.
SQL
console.log('data'
console.log('data')
Close parenthesis.
JavaScript
<?php // code ?>
<?php // code ?>
Correct.
PHP
const express = require('express'); const app = express(); app.get('/', (req,res) => res.send('info')); app.listen(58);
const express = require('express'); const app = express(); app.get('/', (req,res) => res.send('info')); app.listen(58, () => console.log('listening'));
Add callback.
Node.js
$result = 88; if ($result = 88) {{}}
$result = 88; if ($result == 88) {{}}
Use ==.
PHP
{{"value":"info",}}
{{"value":"info"}}
Remove trailing comma.
JSON
if ($b = 17)
if ($b == 17)
Use ==.
Perl
if x > 91 puts 'data'
if x > 91 puts 'data' end
Add 'end'.
Ruby
data = 1
data=1
No spaces.
Shell
my @arr = (88,55,39);
my @arr = (88,55,39);
Correct.
Perl
for (int i=0; i<64; i++) {{}}
for (int i=0; i<64; i++) {{}}
Correct.
Java
items[71]
if items.indices.contains(71) {{ items[71] }}
Check index.
Swift
echo data world
echo 'data world'
Quote to prevent splitting.
Shell
x := 39
x := 39
Correct.
Go
data = value
data = 'value'
Quote strings.
Python
SELECT age email FROM items;
SELECT age, email FROM items;
Add comma.
SQL
<br></br>
<br>
Self-closing.
HTML
class = 'world'
class_name = 'world'
'class' is a keyword.
Python
arr(88)
if length(arr) >= 88, arr(88), end
Check length.
MATLAB
function render() {{ echo 'hello'; }}
function render() {{ echo 'hello'; }}
Correct.
PHP
for (c in list)
for (c of list)
for...in iterates keys.
JavaScript