执行过npm install命令的vue-element-admin源码
康凯
2022-05-20 aa4c235a8ca67ea8b731f90c951a465e92c0a865
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define(['exports', 'module', '../utils'], function (exports, module, _utils) {
  'use strict';
 
  module.exports = function (instance) {
    instance.registerHelper('blockHelperMissing', function (context, options) {
      var inverse = options.inverse,
          fn = options.fn;
 
      if (context === true) {
        return fn(this);
      } else if (context === false || context == null) {
        return inverse(this);
      } else if (_utils.isArray(context)) {
        if (context.length > 0) {
          if (options.ids) {
            options.ids = [options.name];
          }
 
          return instance.helpers.each(context, options);
        } else {
          return inverse(this);
        }
      } else {
        if (options.data && options.ids) {
          var data = _utils.createFrame(options.data);
          data.contextPath = _utils.appendContextPath(options.data.contextPath, options.name);
          options = { data: data };
        }
 
        return fn(context, options);
      }
    });
  };
});
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