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PONesting functions in nodejs / javascript
 

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  1. PONesting functions in nodejs / javascript
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    <p>From what I've read, nesting functions in javascript causes extra declarations / destructions which can be avoided by using "static functions" or even a Singleton implementation. Also "new" does the same thing where two instances of the function or objects are also independent copies.</p> <p>Is this true? If so, what can I do to have the same functionality as with nested functions and with "new". This is for a game where the server is in nodejs / javascript. I've reached about 8 levels of nested functions and am starting to worry.</p> <p>Example:</p> <pre><code>DB.cityUpdateUpkeep = function( cuid ) { /** @type {Array} */ var buildings = null; DB.cityGet( cuid, function( error, city ) { if( error ) { console.log( "Couldn't get city" ); } else { DB.iBuildings.find( {cuid:cuid}, function( error, cursor ) { if( error ) { console.log( "-error:" ); console.log( error ); } else { cursor.toArray( function( error, response ) { if( error ) { console.log( "-error:" ); console.log( error ); } else { console.log( "-the response:" ); console.log( response ); buildings = response; var income = city.resources.income; var storage = city.resources.storage; var stored = city.resources.stored; for( var buildingID in buildings ) { var building = buildings[ buildingID ]; var blueprint = DB.bBuildings[ building.buid ]; if( blueprint.resources.income ) { income = Utils.sumObjects( income, blueprint.resources.income ); } if( blueprint.resources.storage ) { storage = Utils.sumObjects( storage, blueprint.resources.storage ); } if( blueprint.resources.stored ) { stored = Utils.sumObjects( stored, blueprint.resources.stored ); } } console.log( "cuid: " + city._id + " income: " + income + " storage " + storage + " stored " + stored ); } }); } }); } }); }; </code></pre>
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    1. COHow are you nesting them? What functions are these? 8 levels? seriously? sounds like callbacks rather than nested functions.
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    2. COCould you provide an example? The question as it is now it's too generic and would be addressed by pointing you to articles talking about naming functions, using promises, using events, ... without really helping you with your problem.
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    3. COadded an example
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