javascript - Type of datastructure -


i have multiple questions contains sub questions. store in data structure can choose sub question when user selects first question. also, sub questions uses general questions within category. thought using multidimensional array realized take quite long time search through array.

any suggestion appreciated.

thank you

this solution far.

//key question , value(object) contains value related question categorytosubquestions[2] = {"what type of countertop?":{                                 "stone_slab_countertops": "stone slab countertops",                                 "granite_countertops" : "granite countertops",                                 "marble_countertops" : "marble countertops",                                 "quartz_countertops" : "quartz countertops",                                 "slate_countertops" : "slate countertops",                                 "solid_surface_countertops" : "solid surface countertops",                                 "concrete_countertops" : "concrete countertops",                                 "corian_countertops" : "corian countertops",                                 "formica_countertops" : "formica countertops",                                 "stainless_countertops" : "stainless countertops",                                 "wood_or_butcher_block_countertops" : "wood or butcher block countertops",                                 "laminate_countertops" : "laminate countertops",                                 "selectkey":"mappedcategory"                              },                              "what best describes countertop project?":{                                 "install_or_replace": "install or replace",                                 "repair"        : "repair",                                 "selectkey":"describe_countertop_project"                             },                              "generalquestions2": "4"                             }; //this general question other categories might use...it being used in above category generalquestion[4] = {"is project part of larger remodel?":{                             "true" : "yes",                             "false": "no",                             "selectkey":"part_of_larger_remodel"                         }                     }; //this categorytosuquestion index value assosciation...(just keep track) var keyvalue = new array( /*0*/           "cabinets_reface", /*1*/           "cabinets_refinish", /*2*/           "cabinets_countertop_install");

i have 70 of right , little worried if slow down once keep adding more questions?

i'd create data structure this.
don't forget can access hashtable/dictionary on properties.

var questions_data_structure = {     "q1": {         "question_text": "parent question #1?",         "sub_questions": ["subques1", "subques3"]     },     "subques1": {         "question_text": "sub question 1?",         "parent_question": "q1"     },     "subques3": {         "question_text": "sub question 3?",         "parent_question": "q1"     },     "ques8": {         "question_text": "regular question without children questions?"     } }  q = questions_data_structure["q1"]; alert(q.question_text);  if (q.sub_questions && q.sub_questions.length > 0) {     alert("i have child questions");      var = 0, len = q.sub_questions.length, childquestionobj;     (; < len; i++) {         childquestionobj = questions_data_structure[q.sub_questions[i]];         alert(childquestionobj.question_text);     } } else {     alert("i don't have child questions"); }

so if tie data structure's key values html control ids, can this. 

// include jquery library $.each(questions_data_structure, function(question_id, value) {     if (value.sub_questions && value.sub_questions.length > 0) {         $('#' + question_id).click( function(e) {             /* show or hide child question controls */         });     } });

Comments

Post a Comment

Popular posts from this blog

Why does Ruby on Rails generate add a blank line to the end of a file? -

running rails generate controller foo home results in: class foocontroller < application controller def home end end (there's nothing on line in actual file, blank line) is there purpose blank line? it's common use newline indicate end of line, last line. many editors (like vi, use) add in newline silently. consensus text files (especially in unix world) should end in newline, , there have been problems historically if wasn't present. why should text files end newline? the tool used count lines in file "wc" counts newlines in file, without trailing newline show 3 instead of 4. it improves readability of templates used in generator. consider: https://github.com/rails/rails/blob/master/railties/lib/rails/generators/rails/controller/templates/controller.rb to remove trailing newline, template have last line of: end<% end -%> instead of: end <% end -%> that seems less readable me. the discussion below refers
Read more

keyboard - Smiles and long press feature in Android -

i've created android keyboard. how add features inserting smilies, , using long keypresses display symbols? to create long-press behavior allows select several options pop-up menu, follow guide (specifically pop-up menu section): http://developer.android.com/guide/topics/ui/menus.html smileys (also known emoticons) combination of keys, understood programs , parsed same way. have do, when clicks smiley face on keyboard, simulate pressing of key combination matching emoticon. example, when clicks smiley, should simulate key presses ':' , ')' :). here's list of emoticons: http://en.wikipedia.org/wiki/list_of_emoticons
Read more

node.js - Bad Request - node js ajax post -

i'm using express 3.0 , node v0.11.0. have button submits form , i'm using ajax post data json object node server. client code is: $('#contact').submit(function(e) { console.log('submit called'); var formdata = json.stringify($('form').serializeobject()); console.log(formdata); $.ajax({ url: "http://localhost:3000/savedata/", type: "post", datatype: 'json', data: {objectdata: formdata}, contenttype: "application/json", complete: function() { console.log('process complete'); }, success: function(data) { console.log('process sucess'); }, error: function() { console.log('process error'); }, }); return false; }); then on server: var express = require('express'); var app = express(); app.set('views', __dirname + '/views'); app.set('view engine', 'jade'); app.use(express.bodyparser());
Read more