filter - Filtering the data in JSON -


i have these kind of data in json. want filter it, data object corresponding data "integrative programming" in cssubject.

csdetailsforchart json object

"[{"csname":"quiz #1 - create simple socket program","cssubject":"integrative programming","csscore":"18","cspoint":"20"}, {"csname":"quiz #2 - create simple rmi application","cssubject":"integrative programming","csscore":"25","cspoint":"40"}, {"csname":"hello world quiz","cssubject":"integrative programming","csscore":"90","cspoint":"150"}, {"csname":"create program quiz 4","cssubject":"integrative programming","csscore":"45","cspoint":"100"}, {"csname":"quiz 5","cssubject":"math","csscore":"45","cspoint":"60"}, {"csname":"quiz on sql","cssubject":"database management systems","csscore":"100","cspoint":"130"}, {"csname":"quiz 2 erd diagram making","cssubject":"database management systems","csscore":"40","cspoint":"55"}, {"csname":"linear equations","cssubject":"math","csscore":"21","cspoint":"35"}]"

html

<form>     <p>choose subject view performance on subject.</p>      <select id="subselect">         <option selected disabled hidden>select subject</option>     </select>         <button onclick = "loadchart()";>submit</button> </form>

javascript

function loadchart() {     var csdetailsforchart = json.parse(localstorage.getitem('classstanding'));     var subjectfromselectsub = document.getelementbyid('subselect').value;     var datapoints = [];      (key in as){         var percentpassed = ((number(as[key].csscore1)) / (number(as[key].cspoint1))) * 100;         datapoints.push({y: percentpassed, label: as[key].csname1});     }      var chart = new canvasjs.chart("chartcontainer",{         title:{             text: subjectfromselectsub         },         animationenabled: true,         animationduration: 2000,         axisx:{             title: "class standing name"         },         axisy:{             title: "percentage passed"         },         data: [{               type: "bar",             tooltipcontent: "{y}%",             name: "percentage passed",             datapoints: datapoints         }]     });     chart.render(); }

i using canvasjs plot data. want know on how extract data filtered. like, making json object store filtered data. thank you!


Comments

Post a Comment

Popular posts from this blog

How to understand 2 main() functions after using uftrace to profile the C++ program? -

i trying uftrace profile following simple c++ program: #include <iostream> class { public: a() {std::cout << "a created" << std::endl;} ~a() {std::cout << "a destroyed" << std::endl;} }; int main() { a; return 0; } the profile result this: # uftrace a.out created destroyed # duration tid function 2.026 [ 4828] | __cxa_atexit(); [ 4828] | main() { [ 4828] | __static_initialization_and_destruction_0() { 89.397 [ 4828] | std::ios_base::init::init(); 0.768 [ 4828] | __cxa_atexit(); 93.029 [ 4828] | } /* __static_initialization_and_destruction_0 */ 94.425 [ 4828] | } /* main */ [ 4828] | main() { [ 4828] | a::a() { 11.104 [ 4828] | std::operator <<(); 10.825 [ 4828] | std::basic_ostream::operator <<(); 24.514 [ 4828] | } /* a::a */ [ 4828] | a::~a() { 0.978 [ 4828] | ...
Read more

c# - Update a combobox from a presenter (MVP) -

i using mvp in project, new in mvp. have 2 comboboxes. when select option in combobox, combobox should filled new data. this action in presenter. view 'view1' in presenter, , introduced combobox1 , combobox2 properties in 'view1', because need 'datasource', 'displaymember', 'valuemember' , 'refresh()' in method below. but, when using pattern, enough send property like public string combobox2 { { return combobox1.selectedvalue.tosstring(); } } into presenter not whole combobox. how can solve problem? public void onselectedindexchangedcombobox1() { if (view1.combobox1.selectedindex == -1) { return; } datatable dt = tools.getdatatable("a path"); var query = (from o in dt.asenumerable() o.field<string>("afield") == farmerview.combobox1.selectedvalue.tostring() orderby o.field<string>("anotherfield") select...
Read more

How to put a lock and transaction on table using spring 4 or above using jdbcTemplate and annotations like @Transactional? -

i trying put lock on table while writing on table , if happened in between roll-back . trying convert below code lock table test_g1 read; lock table test_g write; -- begin; start transaction; insert test_g1 values(143); insert test_g values(145); select * test_g1; select * test_g; rollback; select * test_g; unlock tables; how convert above code @transactional spring jdbctemplate code? @transactional(rollbackfor={dataaccessexception.class}) public void test(){ jdbctemplate.execute("insert test1 (id, nam) values (4, 'a')"); throw new dataaccessexception("error") { }; } here trying throw error, insert statement should rollback it's not happening . thanks edit-1 attaching code , doing in jdbcdaoimpl.java , mentioned problem comment above test() . app.java package com.cgiri.javabrains.spring4; import org.springframework.beans.factory.annotation.autowired; import org.springframework.context.applic...
Read more