Function copyObj

external/.scrollLibs.js:659–669

(obj, target, overwrite)

  }

  function copyObj(obj, target, overwrite) {
    if (!target) {
      target = {}
    }
    for (var prop in obj) {
      if (obj.hasOwnProperty(prop) && (overwrite !== false || !target.hasOwnProperty(prop))) {
        target[prop] = obj[prop]
      }
    }
    return target
  }

  // Counts the column offset in a string, taking tabs into account.
  // Used mostly to find indentation.