NG2- How to add Javascript in Angular 2

NG2- How to add Javascript in Angular 2

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We shouldn't directly include script in index.html

Solution-1 - Angular CLI- solution

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Open Angular-cli.json 

add under script{ ""ScriptName": "JS file  path located in our application" }

Solution-2 - Other Ng application

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Open the package.json 

add under script{ "ScriptName" :"Script npm path - name" }