hello
\```
world
\```
yolo
// Utilities for express. | |
/** | |
* Wraps request handler and calls next() on error. | |
* @param {Function} reqHandler express request handler. It doesn't have to return Promise. | |
*/ | |
function asyncWrap(reqHandler) { | |
async function handlerWrap(req, res, next) { | |
try { | |
// reqHandler might not return Promise. So, can't do reqHandler().catch(); |
FROM mhart/alpine-node:12.2 as builder | |
# Do crazy stuff | |
FROM mhart/alpine-node:12.2 as app | |
WORKDIR /app | |
RUN apk add --no-cache tini | |
# Can I use a single COPY? | |
COPY --from=builder /app/node_modules ./node_modules | |
COPY --from=builder /app/package*.json ./ |
#!/bin/bash | |
REPOS=(foo bar) | |
git_up() { | |
if (( $# > 0 )) | |
then | |
repos=$@ | |
else | |
repos=${REPOS[@]} |
async (next) => { | |
const x = await f1(); | |
if (x) { | |
return next(); | |
} | |
f2(() => { | |
f3(); | |
next(); | |
}); | |
// fails eslint consistent-return |
ARG UID | |
RUN usermod -u $UID www-data |
""" | |
# / is field access. | |
# .get() is unwrapping value. | |
# Invalid field access is ignored and returns None. | |
>>> (Wrap(1) / 'a' / 0 / 'b').get() | |
# You may specify default value in case invalid field was accessed. | |
>>> (Wrap(1) / 'a' / 0 / 'b').get(True) | |
True |
hello
\```
world
\```
yolo
from typing import Optional | |
a: Optional[str] = None | |
def init(): | |
global a | |
a = 'abc' | |
def g() -> str: # supposed to be called after calling init() | |
return a | |
# $ mypy a.py | |
# a.py:8: error: Incompatible return value type (got "Optional[str]", expected "str") |
create table task( | |
id int primary key, | |
status varchar(10) | |
); | |
create table subtask( | |
id int primary key, | |
task_id int references task(id), | |
status varchar(10) | |
); |
foo: | |
@false | |
@echo 1 # I want this to execute |