KernelDeimos

const cases = [
    ['-', ['incr_post', 'c'], ['get', 'c']],
    ['-', ['incr_pre', 'c'], ['get', 'c']],
    ['-', ['get', 'c'], ['incr_post', 'c']],
    ['-', ['get', 'c'], ['incr_pre', 'c']],
];

const incr_post = (ctx, v) => {
    const v_ = ctx.scope[v];
    ctx.scope[v] += 1;

KernelDeimos

/*
The situation was as follows:

- A project has a number of `.js` files under `dist/`
  - they're bundled by webpack for the browser
  - they're ES6 modules
- A `tools` folder contians commonjs `.js` files
- Want to run tests for files in `dist/` from a node script
  - test.js fails because it can't import ES6 modules

KernelDeimos

const express = require('express');
const dedent = require('dedent');

const scripts = {
    TerminalPage: ({ app, route }) => {
        document.addEventListener('DOMContentLoaded', () => {
            document.getElementById('action').addEventListener('click', () => {
                const val = document.getElementById('message').value;
                const ori = document.getElementById('origin').value;
                console.log(`[${app.name}/${route}] sending message: ` + val)

KernelDeimos

Yet another idea for error handling in Go

Enter "trap block"

The trap block runs any time an error needs to be handled. Unlike catch in other languages, it does not divert the control flow to the end of the block. Instead, control flow is returned to the line immedately following where the error was "trapped".

Trapping an error follows a similar syntax to ignoring an error; instead of using _, use ?.