View consume-browser-readable-stream-as-async-iterator.js
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async function main() { | |
const { body } = await fetch('https://jsonplaceholder.typicode.com/photos') | |
const streamIterator = new StreamChunkIterator(body.getReader()) | |
for await (const chunk of streamIterator) { | |
console.log(chunk) | |
} | |
console.log('Voilà!') | |
} |
View notify.sh
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#!/bin/bash | |
# usage: cmd | osa_notify.sh | |
/usr/bin/osascript 3<&0 <<'APPLESCRIPT' | |
on run argv | |
set stdin to do shell script "cat 0<&3" | |
display notification stdin with title "osa_notify" sound name "Default" | |
return stdin | |
end run | |
APPLESCRIPT |
View change.sh
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aws ec2 modify-instance-attribute --profile [profile] --region [region] --instance-id [instanceid] --block-device-mappings "[{\"DeviceName\": \"/dev/sda1\",\"Ebs\":{\"DeleteOnTermination\":false}}]" |
View format.js
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moment.utc(new Date()).format('YYYY-MM-DDTHH:mm:ss.SSSSSSSSS[Z]') |
View browserifyMiddleware.js
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'use strict' | |
const express = require('express') | |
const browserifyMiddleware = require('browserify-middleware') | |
const path = require('path') | |
browserifyMiddleware.settings('transform', [ | |
[{ presets: ['es2015', 'react', 'stage-2']}, 'babelify'] | |
]) |
View endsWithTest.js
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const loEndsWith = require('lodash.endsWith') | |
console.log('naive:', endsWith('asdsds😀', '?')) | |
console.log('naive:', endsWith('asdsds😀?', '?')) | |
console.log('naive:', endsWith('asdsds😀', '😀')) | |
console.log('mozilla polyfill:', mozEndsWith('asdsds😀', '?')) | |
console.log('mozilla polyfill:', mozEndsWith('asdsds😀?', '?')) | |
console.log('mozilla polyfill:', mozEndsWith('asdsds😀', '😀')) |
View shift_vs_pop.js
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'use strict' | |
const size = 130000 | |
let arr1 = new Array(size) | |
let arr2 = new Array(size) | |
for (let i = 0; i < size; i++) { | |
arr1[i] = i + '' | |
arr2[i] = i + '' |
View forward_vs_backward_for_loop.js
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'use strict' | |
const size = 10000000 | |
let arr = new Array(size) | |
for (let i = 0; i < size; i++) { | |
arr[i] = i + '' | |
} |
View lodash_vs_simple.js
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'use strict' | |
const _ = require('lodash') | |
function intersection(source, target) { | |
let result = [] | |
for (let i = source.length - 1; i >= 0; i--) { | |
let value = source[i] | |
if (target.indexOf(value) > - 1) { | |
result.push(value) |
View toBits.js
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function toBits(a, res) { | |
if (a === 0) return | |
let r = a % 2 | |
if (r === 0) { res.push(0) } else { res.push(1) } | |
toBits(Math.floor(a / 2), res) | |
} | |
function dec2bin(dec){ | |
return (dec >>> 0).toString(2); | |
} |
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