json - if else in javascript leading to missing values -


i have data in json format . follows json string:

var datastring4 = {"details":[{"observationsource":"outpatient clinic","observationvalue":98.69999694824219,"readingname":"body temperature", "observationdatetime":"2014,08,01","readingtype":"vitals"},{"observationsource":"outpatient clinic", "observationvalue":66,"readingname":"heart rate","observationdatetime":"2014,08,01", "readingtype":"vitals"},{"observationsource":"patient self reported","observationvalue":98.5,"readingname":"body temperature","observationdatetime":"2014,08,02", "readingtype":"vitals"},{"observationsource":"patient self reported","observationvalue":62,"readingname":"heart rate","observationdatetime":"2014,08,02","readingtype":"vitals"},{"observationsource":"patient self reported","observationvalue":98.4000015258789,"readingname":"body temperature","observationdatetime":"2014,08,15","readingtype":"vitals"},{"observationsource":"patient self reported","observationvalue":65,"readingname":"heart rate","observationdatetime":"2014,08,15","readingtype":"vitals"},{"observationsource":"patient self reported","observationvalue":98.0999984741211,"readingname":"body temperature","observationdatetime":"2014,08,21","readingtype":"vitals"},{"observationsource":"patient self reported","observationvalue":61,"readingname":"heart rate","observationdatetime":"2014,08,21","readingtype":"vitals"},{"observationsource":"outpatient clinic","observationvalue":98.5,"readingname":"body temperature","observationdatetime":"2014,09,01","readingtype":"vitals"},{"observationsource":"outpatient clinic","observationvalue":65,"readingname":"heart rate","observationdatetime":"2014,09,01","readingtype":"vitals"},{"observationsource":"patient self reported","observationvalue":98.69999694824219,"readingname":"body temperature","observationdatetime":"2014,09,07","readingtype":"vitals"},{"observationsource":"patient self reported","observationvalue":67,"readingname":"heart rate","observationdatetime":"2014,09,07","readingtype":"vitals"}]};

in above josn string , half of values reading name has heart rate , rest half body temperature.

then, have piece of code add values:

for(var i=0; i<queryobjectlen; i++)                 {                     //console.log(queryobject.details[i].deptname);                     var observationdatetime=  new date(queryobject.details[i].observationdatetime);                     var observationvalueheartrate;                     var observationvaluebodytempearture;                    var value =  queryobject.details[i].readingname                   if(value ='heart rate')                    {  observationvalueheartrate= queryobject.details[i].observationvalue;                    console.log(observationdatetime);                    console.log("heartrate" + observationvalueheartrate);                    }                    else                    {                    observationvaluebodytempearture= queryobject.details[i].observationvalue;                    console.log(observationdatetime);                    console.log("bodytemp " + observationvaluebodytempearture);                    }                       arrdata.addrows([                         [observationdatetime,parseint(observationvalueheartrate), parsefloat(observationvaluebodytempearture)]                     ]);

problem: above statements, getting value heart rate , nothing @ body temperature. seems wrong in above piece of code ?

you have used single "=" sign in if statement. compare need use "==" in if statement.


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