fix: convert input value to number on hydration

[santiagocezar]

further fixes #1755 when input is of type "number", currently the binding is set to a string if the default doesn't match.

this gets triggered frequently on Firefox, as it restores input values immediately after a refresh, before the content gets hydrated.

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[Rich-Harris]

preview: https://svelte-dev-git-preview-svelte-14349-svelte.vercel.app/

this is an automated message

[trueadm]

Is this something we can capture with a test case or is it specific to FF?

[github-actions]

Playground

pnpm add https://pkg.pr.new/svelte@14349

[santiagocezar]

looked a bit into the tests, probably a mix between hydration/samples/input-value-changed and hydration/samples/binding-input but with type="number"

[santiagocezar]

and that's easier said than done, the only way i could find to change the input.value before the hydration step was this absolute hack:

export default test({
	props: {
		value: 2
	},

	snapshot(target) {
		const input = target.querySelector('input')
		if (input) input.value = "4"
		return {
			input,
			p: target.querySelector('p')
		};
	},

	test(assert, target, _, component, window) {
		assert.equal(component.value, 4);
	}
});

[Rich-Harris]

thanks!