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a new journey

Oliver N iOliverNguyen

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a new journey
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@iOliverNguyen
iOliverNguyen / xconvey.go
Created December 26, 2022 19:26
Make goconvey work with gomega assertions
package xconvey
import (
"fmt"
"testing"
// Workaround for ginkgo flags used in CI test commands. Without this import, ginkgo flags are not registered and
// the command "go test -v ./... -ginkgo.v" will fail. But for some other reason, ginkgo can not be imported from
// both test and non-test packages (error: flag redefined: ginkgo.seed). So test files using this package (xconvey)
// must NOT import ginkgo.
@iOliverNguyen
iOliverNguyen / 1a.js
Last active September 16, 2022 01:14
class Counter {
constructor() {
this.name = 'Counter';
this.count = 0;
}
inc() {
this.count++;
}
}
@iOliverNguyen
iOliverNguyen / unpopulatedFieldRanger.go
Created March 1, 2022 17:25
// unpopulatedFieldRanger wraps a protoreflect.Message and modifies its Range
// method to additionally iterate over unpopulated fields.
type unpopulatedFieldRanger struct{ pref.Message }
func (m unpopulatedFieldRanger) Range(f func(pref.FieldDescriptor, pref.Value) bool) {
fds := m.Descriptor().Fields()
for i := 0; i < fds.Len(); i++ {
fd := fds.Get(i)
if m.Has(fd) || fd.ContainingOneof() != nil {
continue // ignore populated fields and fields within a oneofs
@iOliverNguyen
iOliverNguyen / findIntersection.js
Last active March 24, 2021 07:46
find intersection of N strictly sorted lists
// find intersection of 2 strictly sorted lists
function findIntersection(a: number[], b: number[]): number[] {
let ai = 0, bi = 0, result = [];
while (ai < a.length && bi < b.length) {
if (a[ai] < b[bi]) ai++;
else if (a[ai] > b[bi]) bi++;
else { // they are equal
result.push(a[ai]);
ai++;
bi++;
@iOliverNguyen
iOliverNguyen / go.json
Created March 20, 2021 10:02
List of golang/go files from GitHub API
[
".gitattributes",
".github",
".github/CODE_OF_CONDUCT.md",
".github/ISSUE_TEMPLATE",
".github/PULL_REQUEST_TEMPLATE",
".github/SUPPORT.md",
".gitignore",
"AUTHORS",
"CONTRIBUTING.md",
@iOliverNguyen
iOliverNguyen / regexp.go
Last active March 4, 2021 03:16
a function for batch processing regular expressions
func processRegex(
s string, rs []*regexp.Regexp,
fn func(string), funcs ...func(string, ...string),
) {
if len(rs) != len(funcs) {
panic("func and regex do not match")
}
for s != "" {
mi, minA, minB, mIdx := 0, len(s), len(s), []int(nil)
for i, re := range rs {
@iOliverNguyen
iOliverNguyen / index-0.html
Last active February 3, 2021 13:07
code snippets for https://olvrng.github.com/w/esm
<script type="module" src="myscript.js"></script>
@iOliverNguyen
iOliverNguyen / index.html
Last active August 28, 2021 15:26
code sample for https://olvrng.github.io/w/esm
<!doctype html>
<html lang="en">
<head>
<title>My little app</title>
</head>
<body>
<script type="module" src="myscript.js"></script>
</body>
</html>
@iOliverNguyen
iOliverNguyen / promise_with_timeout.js
Last active January 26, 2021 08:09
// execute function(s) with a limit timeout, throws error if the function(s)
// do not complete within the given time
export function execWithTimeout(timeout, ...promises) {
let timeoutId;
const countDown = new Promise((_, reject) => {
timeoutId = setTimeout(reject, timeout, new Error('timed out'));
});
return Promise.race([countDown, ...promises]).then((result) => {
clearTimeout(timeoutId);
@iOliverNguyen
iOliverNguyen / proxy.go
Created January 20, 2021 10:15
A simple http proxy in Go
package main
import (
"fmt"
"io"
"net/http"
"time"
)
var client = http.Client{Timeout: 5 * time.Second}