languages/go
languages/go
1
0
Fork 0
mirror of https://github.com/golang/go synced 2024-09-04 23:44:16 +00:00
Code Issues Packages Projects Releases Wiki Activity

doc/go1.12: add notes for syscall/js CLs 141644, 143137, 144384

Browse source 
Also update a Go 1 compatibility promise link to canonical URL.

Updates #27592
Updates #28264

Change-Id: I5994a0a63e0870c1795c65016590dfad829d26a7
Reviewed-on: https://go-review.googlesource.com/c/154618
Reviewed-by: Richard Musiol <neelance@gmail.com>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
This commit is contained in:
Dmitri Shuralyov 2018-12-17 17:15:40 -05:00
parent 5777e9700f
commit c040786f37
1 changed files with 21 additions and 5 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

26
doc/go1.12.html
View file

@ -27,7 +27,7 @@ Do not send CLs removing the interior tags from such phrases.
<p>
The latest Go release, version 1.12, arrives six months after <a href="go1.11">Go 1.11</a>.
Most of its changes are in TODO.
As always, the release maintains the Go 1 <a href="/doc/go1compat.html">promise of compatibility</a>.
As always, the release maintains the Go 1 <a href="/doc/go1compat">promise of compatibility</a>.
We expect almost all Go programs to continue to compile and run as before.
</p>
@ -732,19 +732,35 @@ for {
This is a breaking change, but WebAssembly support is still experimental
and not yet subject to the
<a href="/doc/go1compat">Go 1 compatibility promise</a>. Any code using the
old name will need to be updated.
old names will need to be updated.
</p>
<p><!-- CL 141644 -->
TODO: <a href="https://golang.org/cl/141644">https://golang.org/cl/141644</a>: add Wrapper interface to support external Value wrapper types
If a type implements the new
<a href="/pkg/syscall/js/?GOOS=js&GOARCH=wasm#Wrapper"><code>Wrapper</code></a>
interface,
<a href="/pkg/syscall/js/?GOOS=js&GOARCH=wasm#ValueOf"><code>ValueOf</code></a>
will use it to return the JavaScript value for that type.
</p>
<p><!-- CL 143137 -->
TODO: <a href="https://golang.org/cl/143137">https://golang.org/cl/143137</a>: make zero js.Value represent &#34;undefined&#34;
The meaning of the zero
<a href="/pkg/syscall/js/?GOOS=js&GOARCH=wasm#Value"><code>Value</code></a>
has changed. It now represents the JavaScript <code>undefined</code> value
instead of the number zero.
This is a breaking change, but WebAssembly support is still experimental
and not yet subject to the
<a href="/doc/go1compat">Go 1 compatibility promise</a>. Any code relying on
the zero <a href="/pkg/syscall/js/?GOOS=js&GOARCH=wasm#Value"><code>Value</code></a>
to mean the number zero will need to be updated.
</p>
<p><!-- CL 144384 -->
TODO: <a href="https://golang.org/cl/144384">https://golang.org/cl/144384</a>: add the Value.Truthy method
The new
<a href="/pkg/syscall/js/?GOOS=js&GOARCH=wasm#Value.Truthy"><code>Value.Truthy</code></a>
method reports the
<a href="https://developer.mozilla.org/en-US/docs/Glossary/Truthy">JavaScript "truthiness"</a>
of a given value.
</p>
</dl><!-- syscall/js -->