Part 1 / Bindings / Numeric inputs
In the DOM, everything is a string. That's unhelpful when you're dealing with numeric inputs — type="number" and type="range" — as it means you have to remember to coerce input.value before using it.
With bind:value, Svelte takes care of it for you:
<input type=number bind:value={a} min=0 max=10>
<input type=range bind:value={a} min=0 max=10>1
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<script>
let a = 1;
let b = 2;
</script>
<label>
<input
type="number"
value={a}min="0"
max="10"
/>
<input
type="range"
value={a}min="0"
max="10"
/>
</label>
<label>
<input
type="number"
value={b}min="0"
max="10"
/>
<input
type="range"
value={b}min="0"
max="10"
/>
</label>
<p>{a} + {b} = {a + b}</p><style>
label {display: flex;
}
input,
p {margin: 6px;
}
</style>
initialising