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qbane
Web developer from Taiwan
Workspace
Fork
Public
By
qbane
Edited
Sep 26, 2024
Insert cell
Insert cell
nanoqueryContext
=
nanoquery
.
nanoquery
(
{
fetcher
:
n
=>
fetch
(
`https://api.hnpwa.com/v0/news/${
n
}.json`
)
.
then
(
r
=>
r
.
json
(
)
)
,
cacheLifetime
:
10000
,
}
)
Insert cell
viewof
page
=
Inputs
.
number
(
[
1
,
10
]
,
{
label
:
'Page #'
,
value
:
1
,
}
)
Insert cell
fetcherStore
=
nanoqueryContext
[
0
]
(
[
pageIdxStore
]
)
Insert cell
{
if
(
currentPage
.
data
)
{
return
html
`Page ${
pageIdx
}: <ol>${
currentPage
.
data
.
map
(
x
=>
html
`<li><a href="https://news.ycombinator.com/item?id=${
x
.
id
}" target="_blank">${
x
.
title
}</a> <small>${
x
.
points
}p</small></li>`
)
}</ol>`
}
if
(
currentPage
.
loading
)
{
return
html
`<h1>Loading</h1>`
}
if
(
currentPage
.
error
)
{
return
html
`<div style="color: #c00"><strong>Error</strong>: ${
currentPage
.
error
}</div>`
}
return
html
`?`
}
Insert cell
Insert cell
pageIdxStore
=
{
// bind to observable
const
store
=
nanostores
.
atom
(
1
)
function
handler
(
)
{
store
.
set
(
viewof
page
.
value
)
}
viewof
page
.
addEventListener
(
'input'
,
handler
)
invalidation
.
then
(
(
)
=>
viewof
page
.
removeEventListener
(
'input'
,
handler
)
)
return
store
}
Insert cell
pageIdx
=
storeToAsyncIter
(
pageIdxStore
)
Insert cell
currentPage
=
storeToAsyncIter
(
fetcherStore
)
Insert cell
function
storeToAsyncIter
(
store
)
{
return
Generators
.
observe
(
store
.
subscribe
)
}
Insert cell
Insert cell
nanostores
=
import
(
'https://esm.sh/nanostores'
)
Insert cell
nanoquery
=
import
(
'https://esm.sh/@nanostores/query'
)
Insert cell
Purpose-built for displays of data
Observable is your go-to platform for exploring data and creating expressive data visualizations. Use reactive JavaScript notebooks for prototyping and a collaborative canvas for visual data exploration and dashboard creation.
Try it for free
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page
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pageIdx
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currentPage
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