Svelte 3 - How to loop each block X amount of times

i Use like this for travelling from a to b in Svelte

{#each Array.from(Array(b+1).keys()).slice(a) as i }
    <h1>{i}</h1>                    
{/each}

example (1 to 100):

{#each Array.from(Array(100+1).keys()).slice(1) as i }
    <h1>{i}</h1>                    
{/each}

You can use {#each ...}, like:

{#each Array(3) as _, i}
    <li>{i + 1}</li>
{/each}

An #each tag can loop anything with a length property, so:

{#each {length: 3} as _, i}
    <li>{i + 1}</li>
{/each}

will also work, if you prefer.