any 3:2 multi-map group: any pairing of the 3 with the 2 is valid, one is shown
all 3:1 all-to-all group: each of the 3 corresponds to the 1
inserted
deleted
updated
moved
click a highlight to reveal its counterpart
Code view:
A painting is a person's account of this edit as text, recorded independently of the node mapping - a rendering often has several equally defensible answers where the mapping has one. Deletions and insertions carry no position on the opposite side in a painting, so that panel draws no caret for them.
Before
1// @strict: false
2"use strict";
3
4class test {
5 constructor (static) { }
6}
7
After
1// @target: es2015
2// @strict: false
3"use strict";
4
5class test {
6 constructor (static) { }
7}
8
Before
1// @strict: false
2"use strict";
3
4class test {
5 constructor (static) { }
6}
7
After
1// @target: es2015
2// @strict: false
3"use strict";
4
5class test {
6 constructor (static) { }
7}
8
Before
program
comment "// @strict: false"
expression_statementstring
" "\""
string_fragment "use strict"
" "\""
; ";"
class_declaration
class "class"
type_identifier "test"
class_body
{ "{"
method_definition
property_identifier "constructor"
formal_parameters
( "("
required_parameter
identifier "static"
) ")"
statement_block
{ "{"
} "}"
} "}"
After
program
comment "// @target: es2015"
comment "// @strict: false"
expression_statementstring
" "\""
string_fragment "use strict"
" "\""
; ";"
class_declaration
class "class"
type_identifier "test"
class_body
{ "{"
method_definition
property_identifier "constructor"
formal_parameters
( "("
required_parameter
identifier "static"
) ")"
statement_block
{ "{"
} "}"
} "}"
Keybindings
j / k
next / previous visible node (tree panels)
h / l
collapse / expand the focused node
g / G
jump to first / last visible node
Tab
switch focus between Before/After panels
/
search: jump to next node whose text contains a given string
a
jump the other panel to this node's mapped counterpart
i
hide identical matches, showing only inserted/deleted/updated nodes and their ancestors
v
cycle the view: split / code only / tree only
p
cycle what the code view renders: the node mapping, then each human painting
r
mark this fixture as reviewed, or forget the mark (kept in this browser only)