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@angular-devkit/schematics

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@angular-devkit/schematics

Angular Schematics - Library

  • 16.2.0
  • Source
  • npm
  • Socket score

Version published
Weekly downloads
7M
decreased by-14.19%
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2
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Created

What is @angular-devkit/schematics?

@angular-devkit/schematics is a powerful tool for creating and managing code transformations in Angular projects. It allows developers to automate tasks such as generating components, services, and other Angular constructs, as well as performing code modifications and migrations.

What are @angular-devkit/schematics's main functionalities?

Generating a Component

This feature allows you to generate a new Angular component by creating the necessary TypeScript file with a basic component structure.

const { Rule, SchematicContext, Tree } = require('@angular-devkit/schematics');

function createComponent(options) {
  return (tree, _context) => {
    const content = `import { Component } from '@angular/core';

@Component({
  selector: 'app-${options.name}',
  templateUrl: './${options.name}.component.html',
  styleUrls: ['./${options.name}.component.css']
})
export class ${options.name.charAt(0).toUpperCase() + options.name.slice(1)}Component { }
`;
    tree.create(`/src/app/${options.name}/${options.name}.component.ts`, content);
    return tree;
  };
}

module.exports = { createComponent };

Updating a File

This feature allows you to update an existing file by replacing specified text with new text.

const { Rule, SchematicContext, Tree } = require('@angular-devkit/schematics');

function updateFile(options) {
  return (tree, _context) => {
    const filePath = options.path;
    if (tree.exists(filePath)) {
      const content = tree.read(filePath).toString('utf-8');
      const updatedContent = content.replace(options.oldText, options.newText);
      tree.overwrite(filePath, updatedContent);
    }
    return tree;
  };
}

module.exports = { updateFile };

Deleting a File

This feature allows you to delete a specified file from the project.

const { Rule, SchematicContext, Tree } = require('@angular-devkit/schematics');

function deleteFile(options) {
  return (tree, _context) => {
    const filePath = options.path;
    if (tree.exists(filePath)) {
      tree.delete(filePath);
    }
    return tree;
  };
}

module.exports = { deleteFile };

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Package last updated on 09 Aug 2023

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