The <textarea> element behaves similarly to a text input in Svelte — use bind:value:
App.svelte
<textarea bind:value={value}></textarea>In cases like these, where the names match, we can also use a shorthand form:
App.svelte
<textarea bind:value></textarea>This applies to all bindings, not just textareas.
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<script>
import { marked } from 'marked';let value = `Some words are *italic*, some are **bold**\n\n- lists\n- are\n- cool`;
</script>
<div class="grid">
input
<textarea {value}></textarea>output
<div>{@html marked(value)}</div></div>
<style>
.grid {display: grid;
grid-template-columns: 5em 1fr;
grid-template-rows: 1fr 1fr;
grid-gap: 1em;
height: 100%;
}
textarea {flex: 1;
resize: none;
}
</style>