Mivm
A tiny mvvm library for fun. Use snabbdom.js for virtual dom.
This plugin is just built for learning & memoing purpose.
Do not use in your production.
Install
$ npm install mivm
$ yarn add mivm
Usage
Create root app
Use renderApp with a function or options to create root app, then mount it to DOM.
import { renderApp } from 'mivm';
const app = renderApp(({ html }) =>
html`<div id="app">Hello App</div>`
).mount('#app');
Create component
Use setup to create a component for compiler to deal with.
Components can be used with options components, then used in render function.
import { setup } from 'mivm';
export default setup(
({ html }) => html`<button>My Button</button>`
);
import { renderApp } from 'mivm';
import MyButton from './MyButton';
const app = renderApp({
components: {
MyButton
},
render({ html }) {
return html`
<div id="app">
Hello App
<MyButton></MyButton>
</div>
`;
}
}).mount('#app');
import { setup } from 'mivm';
import MyButton from './MyButton';
export default setup({
components: {
MyButton,
},
render({ html }) {
}
})
Create reactive state
Use data option with ref, reactive, watchEffect function, then return them.
get returned object by render function's 2nd argument.
import { setup } from 'mivm';
export default setup({
data({ ref }) {
const msg = ref('World');
return { msg };
},
render({ html }, state) {
const { msg } = state;
return html`
<div class="message">
Hello ${msg.value}
</div>
`;
}
});
Add event
Add event with @ startWith, eg. @click, @input, @keyup
export default setup({
data({ ref }) {
const inputText = ref('');
const inputHandler = function(e) {
inputText.value = e.target.value;
};
return { inputText, inputHandler };
},
render({ html }, state) {
const { inputText, inputHandler } = state;
return html`
<div>
This is Test: ${inputText.value}
<input value="${inputText.value}" @input="${inputHandler}" />
</div>
`;
}
});
Demo
Use parceljs for example
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
</head>
<body>
<div id="app"></div>
<script src="index.js"></script>
</body>
</body>
</html>
import { renderApp, setup } from 'mivm';
const Test = setup({
data({ ref }) {
const inputText = ref('');
const inputHandler = function(e) {
inputText.value = e.target.value;
};
return { inputText, inputHandler };
},
render({ html }, state) {
const { inputText, inputHandler } = state;
return html`
<div class="test">
This is Test: ${inputText.value}
<input value="${inputText.value}" @input="${inputHandler}" />
</div>
`;
}
});
const Test2 = setup(({ html }) => html`
<div class="test2">Hello Test2</div>
`);
const app = renderApp({
components: {
Test,
Test2
},
data({ ref }) {
const count = ref(0);
const increment = () => {
count.value += 1;
};
return { count, increment };
},
render({ html }, state) {
return html`
<div id="app">
${state.count.value}
<p @click="${state.increment}">Hello World</p>
<Test></Test>
<Test2></Test2>
</div>
`;
},
}).mount('#app');
console.log(app);