Finding a value of a property in a JavaScript object inside an array

Question

I have managed to pull some users back from my firebase database and am outputting them into the console

[Object, Object, Object, Object, Object]

Each object has:

gender: "male"
liked: "liked"
name: "ed"
not_liked: "liked"
username: "[email protected]"
useruid: "HSRcN6PuylXbv87kSWxKVtWffaI3"

how can I go through the array and say if the useruid with a value HSRcN6PuylXbv87kSWxKVtWffaI3 then console.log() the associated name. In this case ed

my pseudo attempt :

if (Object.gender.includes('male')) {
    console.log('yes')
} 
else {
    console.log('nah')
}

Use a loop and an if-statement? Please show us what you tried. — Bergi
– Bergi, Commented Sep 9, 2016 at 14:02
But where's the loop, what is Object? And why are you accessing gender when you say you're interested in the useruid? — Bergi
– Bergi, Commented Sep 9, 2016 at 14:10

Abhijeet · Accepted Answer · 2016-09-09 14:03:52Z

1

Considering you are storing array in dataArray variable in javascript.

for (i = 0; i < dataArray.length; i++) { 
    if(dataArray[i].useruid=="HSRcN6PuylXbv87kSWxKVtWffaI3"){
        console.log(dataArray[i].username);
    }
}

It will print username on console for userid=HSRcN6PuylXbv87kSWxKVtWffaI3

answered Sep 9, 2016 at 14:03

Abhijeet

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1 Comment

Abhijeet Over a year ago

No problem. Let me know if there is any issue

roberrrt-s · Accepted Answer · 2016-09-09 14:04:17Z

0

Simply loop through your array and throw a log when a match has been found.

for(var i = 0; i < arr.length; i++) {
     if(arr[i].useruid === "HSRcN6PuylXbv87kSWxKVtWffaI3") {
          console.log(arr[i].username);
     }
}

As for your pseudo attempt:

for(var i = 0; i < arr.length; i++) {
     if(arr[i].gender === "male") {
          console.log("User is male");
     }
     else {
          console.log("User is female");
     }
}

answered Sep 9, 2016 at 14:04

roberrrt-s

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