This instruction can automatically trigger the angular program, the Ngapp directive specifies the root node of the angular application, which is typically tied to the root node of the page, such as:<body> or
Only one Angularjs app per page can be automatically triggered, and the first Ngapp instruction in the document automatically triggers the ANGULARJS application. If you want to trigger multiple ANGULARJS applications in an HTML document, you need to use Angular.bootstrap to trigger them manually. Angularjs apps cannot be nested with each other.
You can specify a angular module as the root module for the angular application, and when the application is triggered, the module is loaded into $injector and other modules that the application code needs to rely on are loaded.
<! DOCTYPE html>2 AOverrides the default behavior of the HTML a tag, and when the href is empty, the default behavior is blocked, so no jumps occur.
3 NghrefWrite the angular tag {{hash}} directly in the href attribute, and when the user clicks on the link before angular replaces the value of {{hash}}, it will be linked to the wrong address and will typically return a 404 error.
The wrong wording:
<a href= "Http://www.somelinks.com/{{hash}" ></a>
The correct wording
<a ng-href= "Http://www.somelinks.com/{{hash}" ></a>
4 NGSRCUsing the angular tag {{hash}} in the SRC attribute does not get the correct result, and the browser obtains the SRC resource by means of the literal {{hash}} before angular the value of {{hash}}. This can lead to errors. NGSRC solved the problem.
The wording of a bug:
The correct wording:
Angular API Core components of the instruction chapter
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