Listed here are 20 helpful JavaScript snippets that may enable you to when working in your initiatives:
1. Get present date and time:
const now = new Date();
2. Examine if a variable is an array:
Array.isArray(variable);
3. Merge two arrays:
const newArray = array1.concat(array2);
4. Take away duplicates from an array:
const uniqueArray = [...new Set(array)];
5. Type an array in ascending order:
array.kind((a, b) => a - b);
6. Reverse an array:
array.reverse();
7. Convert string to quantity:
const quantity = parseInt(string);
8. Generate a random quantity between two values:
const randomNumber = Math.flooring(Math.random() * (max - min + 1)) + min;
9. Examine if a string incorporates a substring:
string.consists of(substring);
10. Get the size of an object:
Object.keys(object).size;
11. Convert object to array:
const array = Object.entries(object);
12. Examine if an object is empty:
Object.keys(object).size === 0 && object.constructor === Object
13. Get present URL:
const currentUrl = window.location.href;
14. Redirect to a brand new URL:
window.location.exchange(url);
15. Set a cookie:
doc.cookie = "identify=worth; expires=date; path=path; area=area; safe";
16. Get a cookie:
const cookieValue = doc.cookie.exchange(/(?:(?:^|.*;s*)names*=s*([^;]*).*$)|^.*$/, "$1");
17. Examine if a cookie exists:
doc.cookie.break up(';').some((merchandise) => merchandise.trim().startsWith('identify="))
18. Take away a cookie:
doc.cookie = "identify=; expires=Thu, 01 Jan 1970 00:00:00 UTC; path=path; area=area; safe";
19. Get the present viewport dimensions:
const viewportWidth = Math.max(doc.documentElement.clientWidth || 0, window.innerWidth || 0); const viewportHeight = Math.max(doc.documentElement.clientHeight || 0, window.innerHeight || 0);
20. Copy textual content to clipboard:
navigator.clipboard.writeText(textual content);
These JavaScript snippets might help save time and simplify your code when engaged on net initiatives.
