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Javascript 2022-02-28 13:20:48
how to count occurences in an array with javascript
const countOccurrences = (arr, val) => arr.reduce((a, v) => (v === val ? a + 1 : a), 0); // Examples countOccurrences([2, 1, 3, 3, 2, 3], 2); // 2 countOccurrences(['a', 'b', 'a', 'c', 'a', 'b'], 'a'); // 3 Add solution -
Python 2022-02-28 13:00:02
read a csv file in pandas
import panda as pd file_csv = pd.read_csv("file path") ## as csv format file_excel = pd.read_excel("file path") ## as excel format file_json = pd.read_json("file path") ## as json format file_html = pd.read_html("file... Add solution -
Javascript 2022-02-27 17:35:20
next js shared hosting without node js
const { createServer } = require("http"); const { parse } = require("url"); const next = require("next"); const dev = process.env.NODE_ENV !== "production"; const port = !dev ? process.env.PORT : 3000; // Create t... Add solution -
Python 2022-02-25 20:05:04
kitty's calculations on a tree hackerrank solution
from collections import Counter, defaultdict MOD = 10**9 + 7 def read_row(): return (int(x) for x in input().split()) def mul(x, y): return (x * y) % MOD def add(*args): return sum(args) % MOD def sub(x, y): return (x - y) % MOD n, q... Add solution -
Other 2022-02-23 15:55:03
export flutter data to csv
import 'dart:html'; import 'package:csv/csv.dart'; class ExportCsv { final List data; ExportCsv({this.data}); List<List<dynamic>> rows = List<List<dynamic>>(); downloadData() { for (int i = 0; i < data.length; i++... Add solution -
SQL 2022-02-22 17:20:02
get value comma separated sql server
DECLARE @UserMaster TABLE( UserID INT NOT NULL, UserName varchar(30) NOT NULL ); INSERT INTO @UserMaster VALUES (1,'Rakesh') INSERT INTO @UserMaster VALUES (2,'Ashish') INSERT INTO @UserMaster VALUES (3,'Sagar') SELECT * FROM @UserMaste... Add solution -
Python 2022-02-21 06:35:14
print variable type python
v = 10 type(v) # <type 'int'> Add solution
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