Code Snippets Library
Ready-to-use code snippets for developers
JavaScript
Array Filter Unique Values
Remove duplicate values from an array
const uniqueArray = (arr) => […new Set(arr)];
// Usage:
const numbers = [1, 2, 2, 3, 4, 4, 5];
console.log(uniqueArray(numbers)); // [1, 2, 3, 4, 5]
Python
String Reversal
Reverse a string efficiently
def reverse_string(s):
return s[::-1]
return s[::-1]
# Usage:
print(reverse_string(“hello”)) # “olleh”
CSS
Center Element
Center an element both vertically and horizontally
.center-element {
display: flex;
justify-content: center;
align-items: center;
}
display: flex;
justify-content: center;
align-items: center;
}
JavaScript
Async Sleep Function
Pause execution for specified milliseconds
const sleep = (ms) => new Promise(resolve => setTimeout(resolve, ms));
// Usage:
await sleep(1000); // Wait 1 second
Python
File Reading
Read file contents safely
def read_file(filename):
with open(filename, ‘r’) as file:
return file.read()
with open(filename, ‘r’) as file:
return file.read()
# Usage:
content = read_file(‘data.txt’)
SQL
Top Records Query
Get top N records from table
SELECT * FROM users
ORDER BY created_at DESC
LIMIT 10;
ORDER BY created_at DESC
LIMIT 10;