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Djalma Júnior djalmajr

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@djalmajr
djalmajr / images_to_pdf.rb
Last active April 21, 2024 19:12
Converts images in a directory to pdf
#!/usr/bin/env ruby
###############################################################################
# Pre-requirements
#
# - sudo apt update & sudo apt install imagemagick libmagick++-dev
# or
# - brew install imagemagick
#
# - gem install mini_magick prawn
@djalmajr
djalmajr / test.js
Created April 4, 2024 01:50
import { html, render } from 'https://cdn.skypack.dev/uhtml@3';
import { effect, signal } from 'https://cdn.skypack.dev/usignal@0.9';
const todos = signal([]);
const add = () => {
const uuid = crypto.randomUUID();
const text = `Item ${uuid.split('-')[1]}`;
todos.value = todos.value.concat({ uuid, text });
};
@djalmajr
djalmajr / createStore.js
Last active April 14, 2023 15:37
Reactive Store
const typeOf = (v) => ({}.toString.call(v).slice(8, -1).toLowerCase());
const isObj = (v) => ["array", "object"].includes(typeOf(v));
const isFn = (v) => "function" === typeOf(v);
function handler(callback) {
return {
get(obj, prop) {
if (prop === "_isProxy") return true;
let d = Object.getOwnPropertyDescriptor(obj, prop);
let ok = isObj(obj[prop]) && !obj[prop]._isProxy && d?.writable;
@djalmajr
djalmajr / html.js
Last active April 14, 2023 16:43
Simple HTML Renderer
const prefix = "δ";
const isAttr = /([^\s\\>"'=]+)\s*=\s*(['"]?)$/;
const hasPfx = (str) => str.search(prefix) !== -1;
const create = (tag, cfg) => Object.assign(document.createElement(tag), cfg);
export function html(strings, ...values) {
const tmpl = values.reduce((r, _, i) => {
return `${r}${isAttr.test(r) ? prefix + i : `<!--${prefix + i}-->`}${strings[i + 1]}`;
}, strings[0]);
@djalmajr
djalmajr / rename.sh
Created October 27, 2022 15:04 — forked from szeidner/rename.sh
Shell script for renaming an Android package and app name.
#!/bin/sh
set -e
PROGNAME=$(basename $0)
WORKING_DIR=$(cd -P -- "$(dirname -- "$0")" && pwd -P)
OLD_TITLE="DTStart"
OLD_PACKAGE="old.package.name"
die() {
echo "$PROGNAME: $*" >&2
@djalmajr
djalmajr / capitalize.js
Created March 4, 2022 19:49
Capitalize Test
/**
* capitalize.js
*
* @param {string} str
* @returns string
*/
function capitalize(str) {
}
module.exports = { capitalize };
@djalmajr
djalmajr / get.js
Last active March 4, 2022 19:54
Get Test
/**
* get.js
*
* @param {string | string[]} path
* @param {object} data
* @returns unknown
*/
function get(path, data) {
}
@djalmajr
djalmajr / iife-pattern.js
Created May 10, 2021 20:01
Medium Post
// Exemplo de padrão modular usando IIFE
var contador = (function () {
var num = 0;
return {
incrementar: function () {
return ++num;
},
resetar: function () {
@djalmajr
djalmajr / csv2bib.sh
Last active April 16, 2020 18:04
SpringerLink CSV to BIB converter
#!/bin/bash
# csv2bib.sh
#
# SpringerLink CSV to BIB
#
# Author: Djalma Jr.
# Site: djalmajr.com
#
# v0.3.0: Updated download link
# v0.2.0: Added command line options
@djalmajr
djalmajr / loader-1.html
Created November 20, 2018 15:37
App Loader
<!DOCTYPE html>
<html lang="pt-br">
<head>
<meta charset="utf-8">
<title>App Loader</title>
<style media="screen">
html,
body {
background-color: #F2F2F4;
}