angular upgrade to 9 code example

Example 1: ng update @angular/core @angular/cli

npm uninstall -g angular-cli
npm install -g @angular/cli@latest

Example 2: angular 8 to 9

First, update to the latest version of 8
ng update @angular/cli@8 @angular/core@8

Then, update to 9
ng update @angular/cli @angular/core

Example 3: update angular materia;

npm update @angular/material @angular/cdk

Example 4: ng update @angular/core @angular/cli

rm -rf node_modules
npm uninstall --save-dev angular-cli
npm install --save-dev @angular/cli@latest
npm install

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Javascript Example

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