Daniel Cam Urquizo dancourbano
dancourbano
/ gist:4c23a3ab4e1c8f69909a9a555a080ad7
Created
September 5, 2022 06:42
— forked from psayre23/gist:c30a821239f4818b0709
Runtime Complexity of Java Collections
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| Below are the Big O performance of common functions of different Java Collections. | |
| List | Add | Remove | Get | Contains | Next | Data Structure | |
| ---------------------|------|--------|------|----------|------|--------------- | |
| ArrayList | O(1) | O(n) | O(1) | O(n) | O(1) | Array | |
| LinkedList | O(1) | O(1) | O(n) | O(n) | O(1) | Linked List | |
| CopyOnWriteArrayList | O(n) | O(n) | O(1) | O(n) | O(1) | Array |
dancourbano
/ javascript.json
Last active
July 28, 2022 03:33
Snippets Javascript Visual Studio Code
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| { | |
| // Place your snippets for javascript here. Each snippet is defined under a snippet name and has a prefix, body and | |
| // description. The prefix is what is used to trigger the snippet and the body will be expanded and inserted. Possible variables are: | |
| // $1, $2 for tab stops, $0 for the final cursor position, and ${1:label}, ${2:another} for placeholders. Placeholders with the | |
| // same ids are connected. | |
| // Example: | |
| // "Print to console": { | |
| // "prefix": "log", | |
| // "body": [ | |
| // "console.log('$1');", |
dancourbano
/ linux
Last active
April 18, 2022 06:18
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| Si quieren cambiar el nombre de un archivo: | |
| mv[nombreActual.extension] [nombreNuevo.extension] | |
| mv archivo.txt nuevonombre.txt | |
| ver ultimas lineas de archivos largos | |
| tail -f -n 15 /var/log/nginx/nginx.log | |
| saber si existe usuario en tu sistema o no: | |
| cat /etc/passwd | grep usuario |
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| <hgroup> <!--se encarga de agrupar titulos y texto de formatos cabeceras como los h1, h2, etc. | |
| que son solo frases y no textos completos, ademas en ella podemos enviar insertar cualquier texto de ayuda pero que no aparezca en su estructura--> | |
| <aside><!--usada para envolver una seccion de textos, y tambien para resaltar texti de publicidad o texto para llamar la atencion--> | |
| <span> <!--engloba elementos de una misma fila y dar formato mientras que DIV lo hace con contenido de bloques --> |