How can I extract values from a JSON object in JavaScript? Below is the code snippet I've tried:
var obj={"0.5":0.009333, "0.21":0.048667,"0.31":0.070667};
var value =0.21;
var p=0;
for(i=0; i<= obj.length ;i++){
if(value== obj[i]){
p = obj[i]; //I'm expecting p to be 0.048667
console.log("psr is :"+p);
}
}
Hmm... could simply using obj[value] get the job done? :)
JavaScript does not support the use of obj.length. To loop over it, you will need to utilize the following method:
for(var index in object) {
var p = object[index];
console.log(p);
}
If you already know the key, then you can simply do:
console.log(object[key]);
Here is the full code snippet:
var obj = {"0.5":0.009333, "0.21":0.048667,"0.31":0.070667};
var value = "0.21";
var p = obj[value];
console.log(p);
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