docs(ngMessageExp): improve description

spaceribs · gkalpak · commit 29f3bf4bd6c6 · 2016-12-11T20:58:13.000+02:00
Closes #15486
diff --git a/src/ngMessages/messages.js b/src/ngMessages/messages.js
@@ -629,10 +629,8 @@ angular.module('ngMessages', [], function initAngularHelpers() {
    * @scope
    *
    * @description
-   * `ngMessageExp` is a directive with the purpose to show and hide a particular message.
-   * For `ngMessageExp` to operate, a parent `ngMessages` directive on a parent DOM element
-   * must be situated since it determines which messages are visible based on the state
-   * of the provided key/value map that `ngMessages` listens on.
+   * `ngMessageExp` is the same as {@link directive:ngMessage `ngMessage`}, but instead of a static
+   * value, it accepts an expression to be evaluated for the message key.
    *
    * @usage
    * ```html

Original file line number	Diff line number	Diff line change
`@@ -629,10 +629,8 @@ angular.module('ngMessages', [], function initAngularHelpers() {`
`629`	`629`	`* @scope`
`630`	`630`	`*`
`631`	`631`	`* @description`
`632`		- * `ngMessageExp` is a directive with the purpose to show and hide a particular message.
`633`		- * For `ngMessageExp` to operate, a parent `ngMessages` directive on a parent DOM element
`634`		`- * must be situated since it determines which messages are visible based on the state`
`635`		- * of the provided key/value map that `ngMessages` listens on.
	`632`	+ * `ngMessageExp` is the same as {@link directive:ngMessage `ngMessage`}, but instead of a static
	`633`	`+ * value, it accepts an expression to be evaluated for the message key.`
`636`	`634`	`*`
`637`	`635`	`* @usage`
`638`	`636`	* ```html