code: function isInitialized(node) {
      const declaration = node.parent;
      const block = declaration.parent;
  
      if (isForLoop(block)) {
          if (block.type === "ForStatement") {
              return block.init === declaration;
          }
          return block.left === declaration;
      }
      return Boolean(node.init);
  }
docs: Checks whether or not a given declarator node has its initializer.
  @param {ASTNode} node - A declarator node to check.
  @returns {boolean} `true` when the node has its initializer.