Platform
Resources
Pricing
Sign in
Contact us
Sylvain Lesage
Software engineer at Hugging Face. Prototyping here with JS, d3, three.js.
Workspace
Fork
Published
Data structure
By
Sylvain Lesage
Edited
Apr 24, 2020
Fork of
Non-empty Map
•
1 fork
Importers
Data structure
CanvasImageSource
EventTarget
Data structure with events
Map with default
Map with current
Non-empty Map
Hello deep-weak-map
Dummy variables
Grid map data structure
LayerStack
Insert cell
Insert cell
Insert cell
a
=
new
MapWithDefault
(
[
[
1
,
'uno'
]
,
[
2
,
'dos'
]
]
,
2
)
Insert cell
Insert cell
a
instanceof
Map
Insert cell
Insert cell
a
instanceof
NonEmptyMap
Insert cell
Insert cell
b
=
new
MapWithDefault
(
a
,
a
.
defaultKey
)
Insert cell
Insert cell
b
.
defaultKey
Insert cell
{
const
c
=
new
MapWithDefault
(
b
,
b
.
defaultKey
)
;
c
.
defaultKey
=
1
;
return
c
.
defaultKey
;
}
Insert cell
Insert cell
b
.
default
Insert cell
Insert cell
// Error
d
=
new
MapWithDefault
(
b
,
3
)
Insert cell
// Error
(
b
.
defaultKey
=
5
)
Insert cell
Insert cell
// Error
b
.
delete
(
b
.
defaultKey
)
Insert cell
Insert cell
Insert cell
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
Learn more
Compare fork
Fork
View
Export
Edit
Add comment
Select
Duplicate
Copy link
Embed
Delete
JavaScript
Markdown
HTML
Edit
Add comment
Select
Duplicate
Copy link
Embed
Delete
JavaScript
Markdown
HTML
a
Add comment
Copy import
Select
Duplicate
Copy link
Embed
Delete
JavaScript
Markdown
HTML
Edit
Add comment
Select
Duplicate
Copy link
Embed
Delete
JavaScript
Markdown
HTML
Add comment
Select
Duplicate
Copy link
Embed
Delete
JavaScript
Markdown
HTML
Edit
Add comment
Select
Duplicate
Copy link
Embed
Delete
JavaScript
Markdown
HTML
Add comment
Select
Duplicate
Copy link
Embed
Delete
JavaScript
Markdown
HTML
Edit
Add comment
Select
Duplicate
Copy link
Embed
Delete
JavaScript
Markdown
HTML
b
Add comment
Copy import
Select
Duplicate
Copy link
Embed
Delete
JavaScript
Markdown
HTML
Edit
Add comment
Select
Duplicate
Copy link
Embed
Delete
JavaScript
Markdown
HTML
Add comment
Select
Duplicate
Copy link
Embed
Delete
JavaScript
Markdown
HTML
Add comment
Select
Duplicate
Copy link
Embed
Delete
JavaScript
Markdown
HTML
Edit
Add comment
Select
Duplicate
Copy link
Embed
Delete
JavaScript
Markdown
HTML
Add comment
Select
Duplicate
Copy link
Embed
Delete
JavaScript
Markdown
HTML
Edit
Add comment
Select
Duplicate
Copy link
Embed
Delete
JavaScript
Markdown
HTML
d
Add comment
Copy import
Select
Duplicate
Copy link
Embed
Delete
JavaScript
Markdown
HTML
Add comment
Select
Duplicate
Copy link
Embed
Delete
JavaScript
Markdown
HTML
Edit
Add comment
Select
Duplicate
Copy link
Embed
Delete
JavaScript
Markdown
HTML
Add comment
Select
Duplicate
Copy link
Embed
Delete
JavaScript
Markdown
HTML
Edit
Add comment
Select
Duplicate
Copy link
Embed
Delete
JavaScript
Markdown
HTML
MapWithDefault
Edit
Add comment
Copy import
Select
Duplicate
Copy link
Embed
Delete
JavaScript
Markdown
HTML
Edit
Add comment
Copy import
Select
Duplicate
Copy link
Embed
Delete
JavaScript
Markdown
HTML