What do you want to save?
Add Code snippet
New code examples
-
Python 2022-01-26 01:46:22
django db_index=true
When we should use db_index=True in Django? This is not really django specific; more to do with databases. You add indexes on columns when you want to speed up searches on that column. Typically, only the primary key is indexed by the database. This mea... Add solution -
Javascript 2022-01-24 02:00:56
data type javascript
/* The latest ECMAScript standard defines nine types: Six Data Types that are primitives, checked by typeof operator: undefined : typeof instance === "undefined" Boolean : typeof instance === "boolean" Number : typeof instance === &qu... Add solution -
Other 2022-01-22 17:05:10
SELECT FROM
select [all/distinct] <COL1>, <COL2>, <COL3> from <TABLE_NAME> [join <JOIN_CONDITION>] [where <CONDITION>] [group by <COLUMN_NAME>] [having <SEARCH_CONDITION>] [order by <SORT_SPECIFICATION>] /* Spec... Add solution -
SQL 2022-01-22 10:11:37
select query in sql
select [all/distinct] <COL1>, <COL2>, <COL3> from <TABLE_NAME> [join <JOIN_CONDITION>] [where <CONDITION>] [group by <COLUMN_NAME>] [having <SEARCH_CONDITION>] [order by <SORT_SPECIFICATION>] /* Spec... Add solution -
Python 2022-01-22 00:15:19
Tips & Tricks in python
from collections import Counter def is_anagram(str1, str2): return Counter(str1) == Counter(str2) # or without having to import anything def is_anagram(str1, str2): return sort... Add solution -
Python 2021-11-22 11:26:21
collections.Counter(string).most_common
# arithmetic operations c1 = Counter(a=2, b=0, c=-1) c2 = Counter(a=1, b=-1, c=2) c = c1 + c2 # return items having +ve count only print(c) # Counter({'a': 3, 'c': 1}) c = c1 - c2 # keeps only +ve count elements print(c) # Counter({'a': 1, 'b': 1})... Add solution -
Python 2021-11-22 11:26:21
collections.Counter(string).most_common
# arithmetic operations c1 = Counter(a=2, b=0, c=-1) c2 = Counter(a=1, b=-1, c=2) c = c1 + c2 # return items having +ve count only print(c) # Counter({'a': 3, 'c': 1}) c = c1 - c2 # keeps only +ve count elements print(c) # Counter({'a': 1, 'b': 1})... Add solution