javascript - find a value inside array of JSON object -


i below array of json objects jsp 

"titles":[                               {     "book3" : "bulletin 3"     }        ,     {     "book1" : "bulletin 1"     }     ,     {     "book2" : "bulletin 2"     }     ]

on js side, parsed , see array 3 objects. now, want find/identify value when pass string key.

for e.g. when pass "book2" should value "bulletin 2". can me identify approach?

try this

var data = {      "titles": [{          "book3": "bulletin 3"      }, {          "book1": "bulletin 1"      }, {          "book2": "bulletin 2"      }]  };    function getvaluebykey(key, data) {      var i, len = data.length;            (i = 0; < len; i++) {          if (data[i] && data[i].hasownproperty(key)) {              return data[i][key];          }      }            return -1;  }    console.log(getvaluebykey('book2', data.titles));


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