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PHP 2021-11-17 01:02:21
if any comma in string in php
php function strpos return position of string if it's not false or -1 then your string contain character. $searchForValue = ','; $stringValue = '115,251'; if( strpos($stringValue, $searchForValue) !== false ) { echo "Found"; } Add solution -
Other 2021-11-16 23:40:08
cs61b backwash
//use two WQUUF //One way to fix this is two use two different WQUF. //One for checking if the system percolates(include virtual top and bottom ), //and the other to check if a given cell is full(only include virtual top). import edu.princeton.cs.algs4.... Add solution -
Python 2021-11-16 18:18:17
python packing circles
from pprint import pprint import circlify circles = circlify.circlify([9, 8, 7, 6, 5, 4, 3, 2, 1], show_enclosure=True, target_enclosure=circlify.Circle(x=0, y=0, r=1)) # (necessary) data: A list of positive values sorted from largest to smallest # (o... Add solution -
Python 2021-11-15 10:38:06
python read values from file
file = open("text.txt", "w") file.write("Your text goes here") file.close() 'r' open for reading (default) 'w' open for writing, truncating the file first 'x' open for exclusive creation, failing if the file already exists... Add solution -
Javascript 2021-11-14 20:30:21
mongodb delete duplicate documents
var duplicates = []; db.collectionName.aggregate([ { $match: { name: { "$ne": '' } // discard selection criteria }}, { $group: { _id: { name: "$name"}, // can be grouped on multiple properties dups: { "$addTo... Add solution -
Python 2021-11-13 12:28:26
how to make a text file using python
file = open("text.txt", "w") file.write("Your text goes here") file.close() 'r' open for reading (default) 'w' open for writing, truncating the file first 'x' open for exclusive creation, failing if the file already exists... Add solution
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