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📄 no-array-constructor.ts

📊 Analysis Summary

Metric	Count
🔧 Functions	2
📦 Imports	5
📊 Variables & Constants	2

📚 Table of Contents

• Imports
• Variables & Constants
• Functions

🛠️ File Location:

📂 packages/eslint-plugin/src/rules/no-array-constructor.ts

📦 Imports

Name	Source
TSESTree	@typescript-eslint/utils
AST_NODE_TYPES	@typescript-eslint/utils
isOpeningParenToken	@typescript-eslint/utils/ast-utils
isClosingParenToken	@typescript-eslint/utils/ast-utils
createRule	../util

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Variables & Constants

Name	Type	Kind	Value	Exported
sourceCode	any	const	context.sourceCode	✗
firstToken	TSESTree.Expression | TSESTree.Token | null	let/var	node.callee	✗

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Functions

getArgumentsText(node: TSESTree.CallExpression | TSESTree.NewExpression): any

Code

function getArgumentsText(
      node: TSESTree.CallExpression | TSESTree.NewExpression,
    ) {
      const lastToken = sourceCode.getLastToken(node);

      if (lastToken == null || !isClosingParenToken(lastToken)) {
        return '';
      }

      let firstToken: TSESTree.Expression | TSESTree.Token | null = node.callee;

      do {
        firstToken = sourceCode.getTokenAfter(firstToken);
        if (!firstToken || firstToken === lastToken) {
          return '';
        }
      } while (!isOpeningParenToken(firstToken));

      return sourceCode.text.slice(firstToken.range[1], lastToken.range[0]);
    }

• Parameters:
• node: TSESTree.CallExpression | TSESTree.NewExpression
• Return Type: any
• Calls:
• sourceCode.getLastToken
• isClosingParenToken (from @typescript-eslint/utils/ast-utils)
• sourceCode.getTokenAfter
• isOpeningParenToken (from @typescript-eslint/utils/ast-utils)
• sourceCode.text.slice

check(node: TSESTree.CallExpression | TSESTree.NewExpression): void

Code

function check(
      node: TSESTree.CallExpression | TSESTree.NewExpression,
    ): void {
      if (
        node.arguments.length !== 1 &&
        node.callee.type === AST_NODE_TYPES.Identifier &&
        node.callee.name === 'Array' &&
        !node.typeArguments
      ) {
        context.report({
          node,
          messageId: 'useLiteral',
          fix(fixer) {
            const argsText = getArgumentsText(node);

            return fixer.replaceText(node, `[${argsText}]`);
          },
        });
      }
    }

• JSDoc:

  /**
       * Disallow construction of dense arrays using the Array constructor
       * @param node node to evaluate
       */
  

• Parameters:

• node: TSESTree.CallExpression | TSESTree.NewExpression
• Return Type: void
• Calls:
• context.report
• getArgumentsText
• fixer.replaceText

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