lechuhuuha
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| package main | |
| import ( | |
| "database/sql" | |
| "database/sql/driver" | |
| "encoding/json" | |
| "fmt" | |
| "log" | |
| _ "github.com/lib/pq" |
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| package main | |
| import "fmt" | |
| func main() { | |
| a := [5]int{1, 2, 3, 4, 5} | |
| s1 := a[0:3] // len=3 cap=5 | |
| s2 := a[3:5] // len=2 cap=2 | |
| fmt.Println("initial a :", a) // [1 2 3 4 5] |
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| package main | |
| import "fmt" | |
| type Counter struct{ n int } | |
| // --------------------- | |
| // ⬇ value-receiver method | |
| // --------------------- | |
| func (c Counter) Value() int { return c.n } |
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| package main | |
| import ( | |
| "fmt" | |
| "time" | |
| ) | |
| func main() { | |
| unbuf := make(chan int) // 0-capacity ➜ send blocks until a receiver is ready | |
| buf := make(chan int, 2) // capacity = 2 |
lechuhuuha
/ main.go
Created
August 23, 2025 09:55
Q: What’s the difference between buffered and unbuffered channels?
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| package main | |
| import ( | |
| "fmt" | |
| "time" | |
| ) | |
| func main() { | |
| unbuf := make(chan int) // 0-capacity ➜ send blocks until a receiver is ready | |
| buf := make(chan int, 2) // capacity = 2 |
lechuhuuha
/ setup.txt
Last active
December 1, 2024 14:33
Setup minio + elasticsearch + apache tika + mongodb
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| ### Elasticsearch | |
| sysctl -w vm.max_map_count=262144 | |
| sudo sysctl -p | |
| 1. docker network create elastic | |
| 2. docker pull docker.elastic.co/elasticsearch/elasticsearch:8.16.0 | |
| 3. docker run -d --name es01 --net elastic -p 9200:9200 -it -m 2GB docker.elastic.co/elasticsearch/elasticsearch:8.16.0 | |
| 1. docker logs -f es01 | |
| 1. Đợi logs ra password và token | |
| 4. export ELASTIC_PASSWORD="your_password" |
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| mở command line trên windows | |
| chạy dưới quyền administrator | |
| wsl --install -d Ubuntu-22.04 | |
| sau khi cài xong | |
| nhấn nút windows | |
| tìm kiếm Ubuntu rồi mở |
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| <script lang="ts" setup> | |
| import { AliasListResponse, IAlias } from '@/interfaces/IAlias'; | |
| import { t } from '@/plugins/i18n'; | |
| import { ListAliasRequest } from '@/request/alias/request'; | |
| import { AliasStore } from '@/stores/alias-store'; | |
| import { ref } from 'vue'; | |
| const route = useRoute(); | |
| const aliasStore = AliasStore(); | |
| const params = ref<{ nodeId: string }>(route.params as { nodeId: string }); |
lechuhuuha
/ spa.go
Created
October 17, 2024 09:57
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| package http | |
| import ( | |
| "embed" | |
| "errors" | |
| "io/fs" | |
| "net/http" | |
| "path/filepath" | |
| "github.com/gin-contrib/static" |
lechuhuuha
/ testdns2.py
Last active
August 29, 2024 01:52
use mutil threading for calling socket request to domains, skip any domains that does not respond after 30 seconds
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| #!/usr/bin/env python3 | |
| """ | |
| Compares output of URLFWD records to URL Redirects | |
| $ python3 check_url_redirects.py <apikey> | |
| Prerequisites: | |
| Python 3 install | |
| pip install requests pydig |
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