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Fil
Vocateur.
Workspace
Fork
Published
Tools
By
Fil
Edited
Jul 30, 2022
ISC
1 fork
Importers
16 stars
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// use as a viewof (single table) on markdown or html markup
viewof
c
=
tableView
(
md
`| date | name | value |
|---
| 22.01 | Julie | $3 |
| 24.01 | Ahmad | $13 |
| 25.01 | Baruch | $2 |
`
)
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c
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a
=
html
`<table><thead><tr><th>date</th><th>name</th><th>value</th></tr></thead><tbody><tr><td>22.01</td><td>Julie</td><td>$3</td></tr><tr><td>24.01</td><td>Ahmad</td><td>$13</td></tr><tr><td>25.01</td><td>Baruch</td><td>$2</td></tr></tbody></table>`
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// extract one table
tableExtractor
(
a
)
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// extract several tables
tableExtractor
(
b
,
true
)
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// extract all the tables in the document
(
a
,
b
,
tableExtractor
(
d3
.
selectAll
(
"table"
)
,
true
)
)
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fetch
(
CORS_PROXY
+
"https://en.wikipedia.org/wiki/List_of_sandwiches"
)
.
then
(
(
resp
)
=>
resp
.
text
(
)
)
.
then
(
(
html
)
=>
d3
.
create
(
"div"
)
.
html
(
html
)
)
.
then
(
tableExtractor
)
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tableExtractor
=
(
root
,
multiple
=
false
)
=>
{
const
T
=
[
]
;
if
(
!
root
||
!
root
.
selectAll
)
root
=
d3
.
select
(
root
)
;
const
tables
=
root
.
filter
(
function
(
)
{
return
this
.
nodeName
===
"TABLE"
;
}
)
.
size
(
)
?
root
.
nodes
(
)
:
root
.
selectAll
(
"table"
)
;
for
(
const
table
of
tables
)
{
const
keys
=
[
]
,
rows
=
[
]
;
for
(
const
th
of
d3
.
select
(
table
)
.
selectAll
(
"th"
)
)
{
keys
.
push
(
th
.
innerText
.
trim
(
)
)
;
}
for
(
const
tr
of
d3
.
select
(
table
)
.
select
(
"tbody"
)
.
selectAll
(
"tr"
)
)
{
// if we haven't found a thead, number keys
if
(
keys
.
length
===
0
)
{
d3
.
select
(
tr
)
.
selectAll
(
"td"
)
.
each
(
(
_
,
i
)
=>
keys
.
push
(
i
)
)
;
}
const
row
=
{
}
;
let
i
=
0
;
for
(
const
td
of
d3
.
select
(
tr
)
.
selectAll
(
"td"
)
)
{
const
k
=
keys
[
i
++
]
;
if
(
k
)
row
[
k
]
=
td
.
innerText
.
trim
(
)
;
}
rows
.
push
(
row
)
;
}
rows
.
columns
=
keys
;
if
(
keys
.
length
)
T
.
push
(
rows
)
;
}
return
multiple
?
T
:
T
[
0
]
;
}
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tableView
=
(
element
,
multiple
)
=>
{
return
Object
.
assign
(
element
,
{
value
:
tableExtractor
(
element
,
multiple
)
}
)
;
}
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d3
=
require
(
"d3-selection@2"
)
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// import { CORS_PROXY } from "@fil/cors-proxy"
CORS_PROXY
=
"https://cors-anywhere.herokuapp.com/"
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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.
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tableExtractor
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tableView
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d3
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CORS_PROXY
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