diff --git a/day3/index.html b/day3/index.html
new file mode 100644
index 0000000..ba86037
--- /dev/null
+++ b/day3/index.html
@@ -0,0 +1,34 @@
+
+
+
+
+
+
+
+ Day1
+
+
+
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/day3/lib/ReactiveObject.js b/day3/lib/ReactiveObject.js
new file mode 100644
index 0000000..d98c166
--- /dev/null
+++ b/day3/lib/ReactiveObject.js
@@ -0,0 +1,38 @@
+export class Reactive {
+ constructor(obj) {
+ this.contents = obj;
+ this.listeners = {};
+ this.makeReactive(obj);
+ }
+
+ makeReactive(obj) {
+ Object.keys(obj).forEach(prop => this.makePropReactive(obj, prop));
+ }
+
+ makePropReactive(obj, key) {
+ let value = obj[key];
+
+ // Gotta be careful with this here
+ const that = this;
+
+ Object.defineProperty(obj, key, {
+ get() {
+ return value;
+ },
+ set(newValue) {
+ value = newValue;
+ that.notify(key)
+ }
+ })
+ }
+
+ listen(prop, handler) {
+ if (!this.listeners[prop]) this.listeners[prop] = [];
+
+ this.listeners[prop].push(handler);
+ }
+
+ notify(prop) {
+ this.listeners[prop].forEach(listener => listener(this.contents[prop]));
+ }
+}
\ No newline at end of file
diff --git a/day3/lib/templateRenderer.js b/day3/lib/templateRenderer.js
new file mode 100644
index 0000000..79a88c1
--- /dev/null
+++ b/day3/lib/templateRenderer.js
@@ -0,0 +1,40 @@
+export const compileToString = (template) => {
+ const ast = parse(template);
+ let fnStr = `\`\``;
+
+ ast.map(t => {
+ // checking to see if it is an interpolation
+ if (t.startsWith("{") && t.endsWith("}")) {
+ // append it to fnStr
+ const uuid = t.split(/{|}/).filter(Boolean)[0].trim().split("").map(c => c.charCodeAt(0).toString(16).padStart(2, "0")).join("");
+ fnStr = fnStr.substring(0, fnStr.length - 2) + ` data-token-${uuid}>\``;
+ fnStr += `+appState.contents.${t.split(/{|}/).filter(Boolean)[0].trim()}`;
+ } else {
+ // append the string to the fnStr
+ fnStr += `+\`${t}\``;
+ }
+ });
+
+ return fnStr;
+}
+
+var parse = (template) => {
+ let result = /{(.*?)}/g.exec(template);
+ const arr = [];
+ let firstPos;
+
+ while (result) {
+ firstPos = result.index;
+ if (firstPos !== 0) {
+ arr.push(template.substring(0, firstPos));
+ template = template.slice(firstPos);
+ }
+
+ arr.push(result[0]);
+ template = template.slice(result[0].length);
+ result = /{(.*?)}/g.exec(template);
+ }
+
+ if (template) arr.push(template);
+ return arr;
+}
\ No newline at end of file
diff --git a/day3/main.css b/day3/main.css
new file mode 100644
index 0000000..e69de29
diff --git a/day3/package-lock.json b/day3/package-lock.json
new file mode 100644
index 0000000..d89cb13
--- /dev/null
+++ b/day3/package-lock.json
@@ -0,0 +1,852 @@
+{
+ "name": "day1",
+ "version": "0.0.0",
+ "lockfileVersion": 2,
+ "requires": true,
+ "packages": {
+ "": {
+ "name": "day1",
+ "version": "0.0.0",
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+ "vite": "^2.9.9"
+ }
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+ "loong64"
+ ],
+ "dev": true,
+ "optional": true,
+ "os": [
+ "linux"
+ ],
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+ "node": ">=12"
+ }
+ },
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+ "esbuild": "bin/esbuild"
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+}
diff --git a/day3/package.json b/day3/package.json
new file mode 100644
index 0000000..aeb8a33
--- /dev/null
+++ b/day3/package.json
@@ -0,0 +1,13 @@
+{
+ "name": "day1",
+ "private": true,
+ "version": "0.0.0",
+ "scripts": {
+ "dev": "vite",
+ "build": "vite build",
+ "preview": "vite preview"
+ },
+ "devDependencies": {
+ "vite": "^2.9.9"
+ }
+}
diff --git a/day3/script.js b/day3/script.js
new file mode 100644
index 0000000..e8eaa30
--- /dev/null
+++ b/day3/script.js
@@ -0,0 +1,76 @@
+import { Reactive } from './lib/ReactiveObject'
+import { compileToString } from './lib/templateRenderer'
+
+const virtualDomBody = `
+
+
+
+
{count}
+
+
+
+
+
{text}
+
+
+
+
+
+
+`
+
+
+const appState = new Reactive({
+ count: 0,
+ text: ''
+});
+// run code to compile the templated virtualDomBody into a play body
+const templatedVirtualDom = eval(compileToString(virtualDomBody))
+
+// equivalent to mounted() on svelte or vue
+window.addEventListener('load', () => {
+ const documentBody = document.getElementById('app')
+ documentBody.innerHTML = templatedVirtualDom
+ Object.keys(appState.contents).forEach((e) => {
+ const querySelector = "data-token-" + e.split("").map(c => c.charCodeAt(0).toString(16).padStart(2, "0")).join("")
+ const listeningElements = document.querySelectorAll(`[${querySelector}]`)
+ listeningElements.forEach((elm) => {
+ appState.listen(e, (change) => elm.textContent = change);
+ })
+ })
+ let elms = documentBody.querySelectorAll('*[d-click]')
+ elms.forEach((e) => {
+ event.preventDefault();
+ const clickFunction = e.getAttribute("d-click")
+ e.addEventListener('click', () => {
+ eval(clickFunction)
+ })
+ })
+
+ let modelElms = document.querySelectorAll('*[d-model]')
+ modelElms.forEach((e) => {
+ const modelName = e.getAttribute("d-model")
+ e.addEventListener('input', (event) => {
+ appState.contents[modelName] = event.target.value
+ })
+ })
+})
\ No newline at end of file