rspec/rules/S2716/javascript/rule.adoc

== Why is this an issue?

Element selections that could be matched anywhere in the document can be very slow. That's why use of the universal selector, ``++*++``, should be limited; it explicitly specifies that the match could be anywhere.


=== Noncompliant code example

[source,javascript]
----
$( ".buttons > *" );  // Noncompliant; extremely expensive
----


=== Compliant solution

[source,javascript]
----
$( ".buttons" ).children(); // Compliant
----


ifdef::env-github,rspecator-view[]

'''
== Implementation Specification
(visible only on this page)

=== Message

* Remove the use of this universal selector.


'''
== Comments And Links
(visible only on this page)

=== on 17 Mar 2015, 11:02:13 Linda Martin wrote:
\[~ann.campbell.2] assign for completion and review.


=== on 1 Nov 2019, 17:28:58 Elena Vilchik wrote:
See \https://github.com/SonarSource/SonarJS/issues/1698

endif::env-github,rspecator-view[]
migrate rule descriptions to new education format 2023-05-03 11:06:20 +02:00			`== Why is this an issue?`

Restructure one-lang rspecs 2021-04-28 16:49:39 +02:00			Element selections that could be matched anywhere in the document can be very slow. That's why use of the universal selector, ``++*++``, should be limited; it explicitly specifies that the match could be anywhere.

Fix the missing default metadata fields 2021-04-28 18:08:03 +02:00
migrate rule descriptions to new education format 2023-05-03 11:06:20 +02:00			`=== Noncompliant code example`
Restructure one-lang rspecs 2021-04-28 16:49:39 +02:00
RULEAPI-661: Add syntax coloring 2022-02-04 17:28:24 +01:00			`[source,javascript]`
Restructure one-lang rspecs 2021-04-28 16:49:39 +02:00			`----`
			`$( ".buttons > *" ); // Noncompliant; extremely expensive`
			`----`

Fix the missing default metadata fields 2021-04-28 18:08:03 +02:00
migrate rule descriptions to new education format 2023-05-03 11:06:20 +02:00			`=== Compliant solution`
Restructure one-lang rspecs 2021-04-28 16:49:39 +02:00
RULEAPI-661: Add syntax coloring 2022-02-04 17:28:24 +01:00			`[source,javascript]`
Restructure one-lang rspecs 2021-04-28 16:49:39 +02:00			`----`
			`$( ".buttons" ).children(); // Compliant`
			`----`
Fix the missing default metadata fields 2021-04-28 18:08:03 +02:00
Export comments and rspec-to-rspec links from jira 2021-06-02 20:44:38 +02:00
Fix the comment display: rule-id, timestamp, GH visibility, link direction 2021-06-03 09:05:38 +02:00			`ifdef::env-github,rspecator-view[]`
RULEAPI-666: Migrate the "List of parameters", "Highlighting" and "Message" fields from jira RSPEC (#346) 2021-09-20 15:38:42 +02:00
			`'''`
			`== Implementation Specification`
			`(visible only on this page)`

Inline adoc when include has no additional value (#1940) Inline adoc files when they are included exactly once. Also fix language tags because this inlining gives us better information on what language the code is written in. 2023-05-25 14:18:12 +02:00			`=== Message`

			`* Remove the use of this universal selector.`

RULEAPI-666: Migrate the "List of parameters", "Highlighting" and "Message" fields from jira RSPEC (#346) 2021-09-20 15:38:42 +02:00
RULEAPI-576: add a horizontal rule between rule description and comments 2021-06-08 15:52:13 +02:00			`'''`
Export comments and rspec-to-rspec links from jira 2021-06-02 20:44:38 +02:00			`== Comments And Links`
			`(visible only on this page)`

Inline adoc when include has no additional value (#1940) Inline adoc files when they are included exactly once. Also fix language tags because this inlining gives us better information on what language the code is written in. 2023-05-25 14:18:12 +02:00			`=== on 17 Mar 2015, 11:02:13 Linda Martin wrote:`
			`\[~ann.campbell.2] assign for completion and review.`



			`=== on 1 Nov 2019, 17:28:58 Elena Vilchik wrote:`
			`See \https://github.com/SonarSource/SonarJS/issues/1698`

Fix the comment display: rule-id, timestamp, GH visibility, link direction 2021-06-03 09:05:38 +02:00			`endif::env-github,rspecator-view[]`