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DROP TABLE currency; | |
-- Create table variable | |
CREATE TABLE currency ( | |
name VARCHAR(20), | |
code VARCHAR(3), | |
symbol VARCHAR(5) | |
); | |
ALTER TABLE currency CONVERT TO CHARACTER SET utf8; |
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// CPU friendly | |
for { | |
select { | |
case <-time.After(time.Second): | |
// do something | |
} | |
} | |
// instead of busy loop | |
for { |
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package server | |
import ( | |
"bufio" | |
"fmt" | |
"log" | |
"net" | |
) | |
// Server ... |
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// html | |
// <input type="file" onchange="imagesSelected" multiple accept=".gif,.jpg,.jpeg,.png" /> | |
async function imagesSelected(event) { | |
let files = [...event.target.files]; | |
let images = await Promise.all(files.map(f=>{return readAsDataURL(f)})); | |
//all images' base64encoded data will be available as array in images | |
} | |
function readAsDataURL(file) { |
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package main | |
import ( | |
"fmt" | |
"runtime" | |
"strconv" | |
"time" | |
) | |
func printMemStats(message string, rtm runtime.MemStats){ |