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doc: some fixes in repl.md #10160

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doc: some fixes in repl.md #10160

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vsemozhetbyt
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@vsemozhetbyt vsemozhetbyt commented Dec 6, 2016

Checklist
  • documentation is changed or added
  • commit message follows commit guidelines
Affected core subsystem(s)

doc, repl

Description of change
  1. var => let / const.

  2. White space unification (add an infix space in an argument list; change > into > (with a trailing space) in code bits and output examples; explicitly clarify that default REPL prompt contains a trailing space).

  3. Fix an output example (make _ reassignment example match more with the current output; extend the example for more clarity).

  4. Fix a function name (eval => myEval to not shadow the global eval).

  5. Name anonymous functions.

  6. Add the valid link for curl(1) (The current autoinserted link leads to 404 page).

Add an infix space in an argument list.
Change `>` into `> ` in code bits and output examples.
Explicitly clarify that default REPL prompt contains a trailing space.
Make `_` reassignment example match more with the current output.
Extend the example for more clarity.
`eval` => `myEval` to not shadow the global `eval`
`options` in the `repl.start([options])` can be a string.
The current autoinserted link leads to 404 page.
@nodejs-github-bot nodejs-github-bot added doc Issues and PRs related to the documentations. repl Issues and PRs related to the REPL subsystem. labels Dec 6, 2016
@jasnell
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jasnell commented Dec 7, 2016

/cc @nodejs/documentation

replServer.defineCommand('sayhello', {
help: 'Say hello',
action: function(name) {
action: function sayHello(name) {
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doesn't add any value. I'd rather just leave at is it, but do action: function (name) { for coding style's sake

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I've just thought the docs should promote the style appropriate for the code base:

https://github.com/nodejs/node/pulls?q=is%3Apr+name+anonymous+functions+is%3Aclosed

But if I'm wrong, I'll roll back these two with just space insertion.

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I understand. Also I do not have strong feelings about this, but in the /lib case it would hae value since stack traces might look nicer. Here showing APIs is the prime thing to do. E.g. you will never see full error handling in programming books. Again. I don't mind that's why I left it as a comment.

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I see. Well, if nobody will support the additions, I will change as you advise.

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Yeah, but I think we only try to do that in cases where the name is not inferred (well) by V8. Here, .name would just be action without the hint, I think that’s okay.

If you want to change style here, I’d be +1 on just the action(name) { shorthand notation

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@vsemozhetbyt vsemozhetbyt Dec 7, 2016

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Consider also a method shorthand.

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O, I have not seen @addaleax comment)

this.lineParser.reset();
this.bufferedCommand = '';
console.log(`Hello, ${name}!`);
this.displayPrompt();
}
});
replServer.defineCommand('saybye', function() {
replServer.defineCommand('saybye', function sayBye() {
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same as above

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Consider also an arrow function.

* `prompt` {String} The input prompt to display. Defaults to `> `.
* `options` {Object | String}
* `prompt` {String} The input prompt to display. Defaults to `> `
(with a trailing space).
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(...)-content doesn't add any value.

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The trailing space is not shown in the rendered page, it is wiped out. Is this not somehow confusing?

@@ -411,6 +417,8 @@ added: v0.1.91
`SIGINT` is received, i.e. `Ctrl+C` is pressed. This cannot be used together
with a custom `eval` function. Defaults to `false`.
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maybe add reference to your new name here

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@vsemozhetbyt vsemozhetbyt Dec 7, 2016

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This eval is used in multiple places as an abstraction. It is just in the code that it shadows global.

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LGTM, with comments, minus one content issue I would rather want to check or in a separate PR.

@@ -411,6 +417,8 @@ added: v0.1.91
`SIGINT` is received, i.e. `Ctrl+C` is pressed. This cannot be used together
with a custom `eval` function. Defaults to `false`.

If `options` is a string, then it specifies the input prompt.

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Don't know whether this is true. If so it would be a major change in documentation, since also the type is just displaying <Object>

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@vsemozhetbyt vsemozhetbyt Dec 7, 2016

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Well, it is almost documented in some examples. See:

https://github.com/nodejs/node/blame/master/doc/api/repl.md#L101
https://github.com/nodejs/node/blame/master/doc/api/repl.md#L120

If it is not official API, maybe we should change these fragments too?

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This is actually how it works, although I don't know how "official" it is. See repl.start and the REPLServer constructor. I do see examples of this usage all over the place. In addition to what @vsemozhetbyt referenced there is another example here.

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Thanks for the PR in any case, since there are apparently still a lot things to do in this file.

Replaced with an object shorthand and an arrow function.
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vsemozhetbyt commented Dec 7, 2016

I've replaced the anonymous functions in more concise ways, maybe they are better now. As to options addition, if nobody else supports, I will revert this change for a separate PR.

Trott and others added 3 commits December 7, 2016 07:35
test-buffer-creation-regression is flaky on some SmartOS hosts in CI,
timing out. Move to sequential so it does not compete with other tests
for resources. Reduce three test cases to just the one needed to
identify the regression.

PR-URL: #10161
Reviewed-By: Santiago Gimeno <santiago.gimeno@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Italo A. Casas <me@italoacasas.com>
- changes var to const/let
- changes assert.equal to assert.strictEqual

PR-URL: #9947
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: James M Snell <jasnell@gmail.com>
Currently when running make node_g the following error is displayed:
if [ ! -r node -o ! -L  ]; then ln -fs out/Debug/node node_g; fi
/bin/sh: line 0: [: argument expected

It looks like there was a typo for the NODE_EXE where node became
lowercase instead of uppercase.

Ref: #9827
PR-URL: #10153
Reviewed-By: Jeremiah Senkpiel <fishrock123@rocketmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Italo A. Casas <me@italoacasas.com>
`global` scope.
declared either implicitly or using the `const` or `let` keywords
are declared at the `global` scope (as well as with the `var` keyword
outside of functions).

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This seems like a cumbersome distinction between const and var, and `let. Couldn't it just be something like this?

"variables declared either implicitly, or using the const, let, or var keywords are declared at the global scope."

Especially since the phrase is immediately preceded by "Unless otherwise scoped within blocks or functions".

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@lance But it is exactly this remark — "Unless otherwise scoped within blocks or functions" — that prevents placing const, var, and let in the same list: var is not block scoped. Maybe you or somebody else could propose the whole clear concise sentence there? I am not a native speaker, so I am a bit clumsy there.

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var is not block scoped

The const and let declarations are block scoped, and the var declaration is function scoped. I think this sentence covers both. I'm not sure if I have a wording that is clearer.

Unless otherwise scoped within blocks or functions, variables declared either implicitly, or using the const, let, or var keywords are declared at the global scope.

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Thank you. Done.

bnoordhuis and others added 7 commits December 7, 2016 17:51
Silence coverity warnings about the return value not being checked.

PR-URL: #10126
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Eugene Ostroukhov <eostroukhov@chromium.org>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: James M Snell <jasnell@gmail.com>
PR-URL: #9899
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
- Make URLSearchParams constructor spec-compliant
- Strip leading `?` in URL#search's setter
- Spec-compliant iterable interface
- More precise handling of update steps as mandated by the spec
- Add class strings to URLSearchParams objects and their prototype
- Make sure `this instanceof URLSearchParams` in methods

Also included are relevant tests from W3C's Web Platform Tests
(https://github.com/w3c/web-platform-tests/tree/master/url).

Fixes: #9302
PR-URL: #9484
Reviewed-By: James M Snell <jasnell@gmail.com>
setTimeout at 49:5 requires two arguments.

On lines 72 and 73 changed assert.equal() to assert.strictEqual().

PR-URL: #10003
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Jeremiah Senkpiel <fishrock123@rocketmail.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>
In this change, the setTimeout needed a second argument, so I set that
value to 1. In addition, I changed the assertion to be a strictEquals
instead of equals.

I changed the var declarations to const in this test.

PR-URL: #9889
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
PR-URL: #10168
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: Evan Lucas <evanlucas@me.com>
Reviewed-By: Michaël Zasso <targos@protonmail.com>
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lance commented Dec 7, 2016

LGTM

edsadr and others added 5 commits December 12, 2016 11:31
- use const and let for variables
- replace assert.equal with assert.strictEqual

PR-URL: #10167
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Italo A. Casas <me@italoacasas.com>
* use common.mustCall() to confirm number of uncaught exceptions
* var -> const
* specify duration of 1ms for setTimeout() and setInterval()

PR-URL: #10188
Reviewed-By: Santiago Gimeno <santiago.gimeno@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Sakthipriyan Vairamani <thechargingvolcano@gmail.com>
`options` in the `repl.start([options])` can be a string.

Ref: #10160

PR-URL: #10221
Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>
In test-http-incoming-pipelined-socket-destory:

* setTimeout() with no duration -> setImmediate()
* eliminate unneeded exit listener
* use common.mustCall()
* var -> const/let

PR-URL: #10189
Reviewed-By: Santiago Gimeno <santiago.gimeno@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Sakthipriyan Vairamani <thechargingvolcano@gmail.com>
PR-URL: #10190
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Sakthipriyan Vairamani <thechargingvolcano@gmail.com>
Reviewed-By: Gibson Fahnestock <gibfahn@gmail.com>
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vsemozhetbyt commented Dec 12, 2016

Oh, I am sorry. It seems I've caused a merge conflict by #10221. What should I do now?

* use common.mustCall() where appropriate
* Buffer.allocUnsafe() -> Buffer.alloc()
* do crypto check before loading any additional modules
* specify 1ms duration for `setTimeout()`

PR-URL: #10225
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
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lance commented Dec 12, 2016

@vsemozhetbyt you should rebase this PR and push those changes. This happened because I landed #10221.

Add an infix space in an argument list.
Change `>` into `> ` in code bits and output examples.
Explicitly clarify that default REPL prompt contains a trailing space.
Make `_` reassignment example match more with the current output.
Extend the example for more clarity.
`eval` => `myEval` to not shadow the global `eval`
`options` in the `repl.start([options])` can be a string.
The current autoinserted link leads to 404 page.
Replaced with an object shorthand and an arrow function.
It will be postponed for more careful evaluating in a separate PR.
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Sorry, it seems I've messed this up. I will close now and will redo from scratch(

@vsemozhetbyt vsemozhetbyt deleted the repl.md branch December 12, 2016 22:49
@vsemozhetbyt vsemozhetbyt mentioned this pull request Dec 13, 2016
2 tasks
targos pushed a commit that referenced this pull request Jan 28, 2017
`options` in the `repl.start([options])` can be a string.

Ref: #10160

PR-URL: #10221
Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>
italoacasas pushed a commit to italoacasas/node that referenced this pull request Jan 30, 2017
`options` in the `repl.start([options])` can be a string.

Ref: nodejs#10160

PR-URL: nodejs#10221
Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>
italoacasas pushed a commit to italoacasas/node that referenced this pull request Jan 30, 2017
`options` in the `repl.start([options])` can be a string.

Ref: nodejs#10160

PR-URL: nodejs#10221
Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>
MylesBorins pushed a commit that referenced this pull request Mar 8, 2017
`options` in the `repl.start([options])` can be a string.

Ref: #10160

PR-URL: #10221
Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>
MylesBorins pushed a commit that referenced this pull request Mar 9, 2017
`options` in the `repl.start([options])` can be a string.

Ref: #10160

PR-URL: #10221
Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>
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