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docs: format null as code fragment + fix description of returned value (#40852)

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PR Close #40852
This commit is contained in:
Alexey Elin 2021-02-15 12:34:51 +03:00 committed by Joey Perrott
parent e3c21c5465
commit f4f7c33e1f
2 changed files with 6 additions and 6 deletions
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2
packages/core/src/di/injector_compatibility.ts
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@ -126,7 +126,7 @@ Please check that 1) the type for the parameter at index ${
* @param flags Optional flags that control how injection is executed. * @param flags Optional flags that control how injection is executed.
* The flags correspond to injection strategies that can be specified with * The flags correspond to injection strategies that can be specified with
* parameter decorators `@Host`, `@Self`, `@SkipSef`, and `@Optional`. * parameter decorators `@Host`, `@Self`, `@SkipSef`, and `@Optional`.
* @returns True if injection is successful, null otherwise. * @returns the injected value if injection is successful, `null` otherwise.
* *
* @usageNotes * @usageNotes
* *

8
packages/core/src/di/metadata.ts
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@ -71,14 +71,14 @@ export interface OptionalDecorator {
/** /**
* Parameter decorator to be used on constructor parameters, * Parameter decorator to be used on constructor parameters,
* which marks the parameter as being an optional dependency. * which marks the parameter as being an optional dependency.
* The DI framework provides null if the dependency is not found. * The DI framework provides `null` if the dependency is not found.
* *
* Can be used together with other parameter decorators * Can be used together with other parameter decorators
* that modify how dependency injection operates. * that modify how dependency injection operates.
* *
* @usageNotes * @usageNotes
* *
* The following code allows the possibility of a null result: * The following code allows the possibility of a `null` result:
* *
* <code-example path="core/di/ts/metadata_spec.ts" region="Optional"> * <code-example path="core/di/ts/metadata_spec.ts" region="Optional">
* </code-example> * </code-example>
@ -118,7 +118,7 @@ export interface SelfDecorator {
* which tells the DI framework to start dependency resolution from the local injector. * which tells the DI framework to start dependency resolution from the local injector.
* *
* Resolution works upward through the injector hierarchy, so the children * Resolution works upward through the injector hierarchy, so the children
* of this class must configure their own providers or be prepared for a null result. * of this class must configure their own providers or be prepared for a `null` result.
* *
* @usageNotes * @usageNotes
* *
@ -216,7 +216,7 @@ export interface HostDecorator {
* *
* @usageNotes * @usageNotes
* *
* The following shows use with the `@Optional` decorator, and allows for a null result. * The following shows use with the `@Optional` decorator, and allows for a `null` result.
* *
* <code-example path="core/di/ts/metadata_spec.ts" region="Host"> * <code-example path="core/di/ts/metadata_spec.ts" region="Host">
* </code-example> * </code-example>