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node_modules/eslint/lib/rules/no-new-wrappers.js 976 Bytes
f7563de62   Palak Handa   first commit
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  /**
   * @fileoverview Rule to flag when using constructor for wrapper objects
   * @author Ilya Volodin
   */
  
  "use strict";
  
  //------------------------------------------------------------------------------
  // Rule Definition
  //------------------------------------------------------------------------------
  
  module.exports = {
      meta: {
          docs: {
              description: "disallow `new` operators with the `String`, `Number`, and `Boolean` objects",
              category: "Best Practices",
              recommended: false
          },
  
          schema: []
      },
  
      create(context) {
  
          return {
  
              NewExpression(node) {
                  const wrapperObjects = ["String", "Number", "Boolean", "Math", "JSON"];
  
                  if (wrapperObjects.indexOf(node.callee.name) > -1) {
                      context.report({ node, message: "Do not use {{fn}} as a constructor.", data: { fn: node.callee.name } });
                  }
              }
          };
  
      }
  };