https://www.youtube.com/shorts/uWEIaF0PNGg
Python optimization trick. Reassign global varibale in local scope specially in loops inside a function.
[ | |
{ | |
"Currency Name": "United Arab Emirates Dirham", | |
"ISO Code": "AED" | |
}, | |
{ | |
"Currency Name": "Albanian lek", | |
"ISO Code": "ALL" | |
}, | |
{ |
https://www.youtube.com/shorts/uWEIaF0PNGg
Python optimization trick. Reassign global varibale in local scope specially in loops inside a function.
ctrl+b+"
= Splits the window horizantally
ctrl+c+%
= Splits the window vertically
ctrl+d
= Drop the current pane
ctrl+b+<arrows>
= to switch between pages
ctrl+b+z
= Zoom in and out in the current pane
ctrl+b+c
= Create a new window
ctrl+b+p
= Go to the previous window
ctrl+b+n
= Go to the next window \
const uptime = new Date(Math.floor(process.uptime()) * 1000).toISOString().substr(11, 8) |
I hereby claim:
To claim this, I am signing this object:
// Inverts the integers of an array | |
const invert = arr => arr.map(n => -n); | |
invert([2,-5]); //=> [-2,5] |
show dbs
: Show all the databases.
use <database>
: switch/move into a database.
show collections
: Show all the collections in that database.
db.<collection>.find()
: Show all documents in the collection.
db.<collection>.help()
: Show help on collection methods.
db.<collection>.drop()
: Drops or removes completely the collection.
db.<collection>.deleteMany()
: Delete documents from the collection.
db.dropDatabase()
: Deletes a database.