Javascript : How to check if particular key is exist or not
2
I am getting a response by calling API. which is like this.
[{"id":213132},{"id":241132},{"id":465413},{"id":546351},{"id":164854,"data":[{"rate" : 20}]},
{"id":564656,"data":[{"rate" : 40}]}]
How can I check that for particular id, there is a key data exist or not?
Any help would be great.
Thank You.
javascript object
edited Nov 13 '18 at 6:49
Hassan Imam
11.6k31230
asked Nov 13 '18 at 6:44
Brijesh PatelBrijesh Patel
376
add a comment |
2
I am getting a response by calling API. which is like this.
[{"id":213132},{"id":241132},{"id":465413},{"id":546351},{"id":164854,"data":[{"rate" : 20}]},
{"id":564656,"data":[{"rate" : 40}]}]
How can I check that for particular id, there is a key data exist or not?
Any help would be great.
Thank You.
javascript object
edited Nov 13 '18 at 6:49
Hassan Imam
11.6k31230
asked Nov 13 '18 at 6:44
Brijesh PatelBrijesh Patel
376
add a comment |
2
2
2
I am getting a response by calling API. which is like this.
[{"id":213132},{"id":241132},{"id":465413},{"id":546351},{"id":164854,"data":[{"rate" : 20}]},
{"id":564656,"data":[{"rate" : 40}]}]
How can I check that for particular id, there is a key data exist or not?
Any help would be great.
Thank You.
javascript object
edited Nov 13 '18 at 6:49
Hassan Imam
11.6k31230
asked Nov 13 '18 at 6:44
Brijesh PatelBrijesh Patel
376
I am getting a response by calling API. which is like this.
[{"id":213132},{"id":241132},{"id":465413},{"id":546351},{"id":164854,"data":[{"rate" : 20}]},
{"id":564656,"data":[{"rate" : 40}]}]
How can I check that for particular id, there is a key data exist or not?
Any help would be great.
Thank You.
javascript object
javascript object
edited Nov 13 '18 at 6:49
Hassan Imam
11.6k31230
asked Nov 13 '18 at 6:44
Brijesh PatelBrijesh Patel
376
edited Nov 13 '18 at 6:49
Hassan Imam
11.6k31230
asked Nov 13 '18 at 6:44
Brijesh PatelBrijesh Patel
376
edited Nov 13 '18 at 6:49
Hassan Imam
11.6k31230
edited Nov 13 '18 at 6:49
Hassan Imam
11.6k31230
edited Nov 13 '18 at 6:49
Hassan Imam
11.6k31230
11.6k31230
asked Nov 13 '18 at 6:44
Brijesh PatelBrijesh Patel
376
asked Nov 13 '18 at 6:44
Brijesh PatelBrijesh Patel
376
asked Nov 13 '18 at 6:44
Brijesh PatelBrijesh Patel
376
376
add a comment |
add a comment |
6 Answers
6
active
oldest
votes
3
You can first use Array.find() to get the object with the desired ID and then check if the property data is undefined or not
const myArray = [{"id":213132},{"id":241132},{"id":465413},{"id":546351},{"id":164854,"data":[{"rate" : 20}]}];
function hasData(id) {
const myObject = myArray.find(x => x.id === id);
return typeof myObject !== "undefined" && typeof myObject.data !== "undefined";
}
console.log(hasData(164854));
console.log(hasData(241132));answered Nov 13 '18 at 6:46
WeedozeWeedoze
9,3712337
add a comment |
2
let id = 164854;
result = myArray.filter((val) => {return val.id === id && val.data;});
answered Nov 13 '18 at 6:51
Anjana GAnjana G
843
add a comment |
1
you can use filter
let data = [{"id":213132},{"id":241132},{"id":465413},{"id":546351},{"id":164854,"data":[{"rate" : 20}]} ];
function hasData(key) { return !!data.filter(x=> x.id==key)[0].data }
console.log(hasData("213132"))
console.log(hasData("164854"))answered Nov 13 '18 at 6:49
AnoopAnoop
19.1k94768
add a comment |
1
You can use "Array.find" to check if id exists, and then you can convert the result to boolean by using "!!"
var arr = [{"id":213132},{"id":241132},{"id":465413},{"id":546351},{"id":164854,"data":[{"rate" : 20}]}]
function doesDataExist(id) {
return !!arr.find(d => d.id == id).data
}
console.log(doesDataExist(164854))
console.log(doesDataExist(213132))answered Nov 13 '18 at 6:49
Nitish NarangNitish Narang
2,948815
add a comment |
1
You can simply use Array.some(), it will return a boolean value based on the condition.
let arr= [{"id":213132},{"id":241132},{"id":465413},{"id":546351, "data":[{"id":1}]},{"id":164854}];
let id = 546351;
console.log(arr.some(obj => obj.id == id && !!obj.data));
id = 213132;
console.log(arr.some(obj => obj.id == id && !!obj.data));answered Nov 13 '18 at 6:52
amrender singhamrender singh
4,8131718
add a comment |
1
you can use findIndex function to find the particular id
let id = 241132;
let index = arr.findIndex((data)=> data.id == id)
index==-1 ? console.log("not find") : console.log("find index=>"+index)
answered Nov 13 '18 at 7:29
HarisHaris
679
add a comment |
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6 Answers
6
active
oldest
votes
6 Answers
6
active
oldest
votes
active
oldest
votes
active
oldest
votes
3
You can first use Array.find() to get the object with the desired ID and then check if the property data is undefined or not
const myArray = [{"id":213132},{"id":241132},{"id":465413},{"id":546351},{"id":164854,"data":[{"rate" : 20}]}];
function hasData(id) {
const myObject = myArray.find(x => x.id === id);
return typeof myObject !== "undefined" && typeof myObject.data !== "undefined";
}
console.log(hasData(164854));
console.log(hasData(241132));answered Nov 13 '18 at 6:46
WeedozeWeedoze
9,3712337
add a comment |
3
You can first use Array.find() to get the object with the desired ID and then check if the property data is undefined or not
const myArray = [{"id":213132},{"id":241132},{"id":465413},{"id":546351},{"id":164854,"data":[{"rate" : 20}]}];
function hasData(id) {
const myObject = myArray.find(x => x.id === id);
return typeof myObject !== "undefined" && typeof myObject.data !== "undefined";
}
console.log(hasData(164854));
console.log(hasData(241132));answered Nov 13 '18 at 6:46
WeedozeWeedoze
9,3712337
add a comment |
3
3
3
You can first use Array.find() to get the object with the desired ID and then check if the property data is undefined or not
const myArray = [{"id":213132},{"id":241132},{"id":465413},{"id":546351},{"id":164854,"data":[{"rate" : 20}]}];
function hasData(id) {
const myObject = myArray.find(x => x.id === id);
return typeof myObject !== "undefined" && typeof myObject.data !== "undefined";
}
console.log(hasData(164854));
console.log(hasData(241132));answered Nov 13 '18 at 6:46
WeedozeWeedoze
9,3712337
You can first use Array.find() to get the object with the desired ID and then check if the property data is undefined or not
const myArray = [{"id":213132},{"id":241132},{"id":465413},{"id":546351},{"id":164854,"data":[{"rate" : 20}]}];
function hasData(id) {
const myObject = myArray.find(x => x.id === id);
return typeof myObject !== "undefined" && typeof myObject.data !== "undefined";
}
console.log(hasData(164854));
console.log(hasData(241132));const myArray = [{"id":213132},{"id":241132},{"id":465413},{"id":546351},{"id":164854,"data":[{"rate" : 20}]}];
function hasData(id) {
const myObject = myArray.find(x => x.id === id);
return typeof myObject !== "undefined" && typeof myObject.data !== "undefined";
}
console.log(hasData(164854));
console.log(hasData(241132));const myArray = [{"id":213132},{"id":241132},{"id":465413},{"id":546351},{"id":164854,"data":[{"rate" : 20}]}];
function hasData(id) {
const myObject = myArray.find(x => x.id === id);
return typeof myObject !== "undefined" && typeof myObject.data !== "undefined";
}
console.log(hasData(164854));
console.log(hasData(241132));answered Nov 13 '18 at 6:46
WeedozeWeedoze
9,3712337
answered Nov 13 '18 at 6:46
WeedozeWeedoze
9,3712337
answered Nov 13 '18 at 6:46
WeedozeWeedoze
9,3712337
answered Nov 13 '18 at 6:46
WeedozeWeedoze
9,3712337
9,3712337
add a comment |
add a comment |
2
let id = 164854;
result = myArray.filter((val) => {return val.id === id && val.data;});
answered Nov 13 '18 at 6:51
Anjana GAnjana G
843
add a comment |
2
let id = 164854;
result = myArray.filter((val) => {return val.id === id && val.data;});
answered Nov 13 '18 at 6:51
Anjana GAnjana G
843
add a comment |
2
2
2
let id = 164854;
result = myArray.filter((val) => {return val.id === id && val.data;});
answered Nov 13 '18 at 6:51
Anjana GAnjana G
843
let id = 164854;
result = myArray.filter((val) => {return val.id === id && val.data;});
answered Nov 13 '18 at 6:51
Anjana GAnjana G
843
answered Nov 13 '18 at 6:51
Anjana GAnjana G
843
answered Nov 13 '18 at 6:51
Anjana GAnjana G
843
answered Nov 13 '18 at 6:51
Anjana GAnjana G
843
843
add a comment |
add a comment |
1
you can use filter
let data = [{"id":213132},{"id":241132},{"id":465413},{"id":546351},{"id":164854,"data":[{"rate" : 20}]} ];
function hasData(key) { return !!data.filter(x=> x.id==key)[0].data }
console.log(hasData("213132"))
console.log(hasData("164854"))answered Nov 13 '18 at 6:49
AnoopAnoop
19.1k94768
add a comment |
1
you can use filter
let data = [{"id":213132},{"id":241132},{"id":465413},{"id":546351},{"id":164854,"data":[{"rate" : 20}]} ];
function hasData(key) { return !!data.filter(x=> x.id==key)[0].data }
console.log(hasData("213132"))
console.log(hasData("164854"))answered Nov 13 '18 at 6:49
AnoopAnoop
19.1k94768
add a comment |
1
1
1
you can use filter
let data = [{"id":213132},{"id":241132},{"id":465413},{"id":546351},{"id":164854,"data":[{"rate" : 20}]} ];
function hasData(key) { return !!data.filter(x=> x.id==key)[0].data }
console.log(hasData("213132"))
console.log(hasData("164854"))answered Nov 13 '18 at 6:49
AnoopAnoop
19.1k94768
you can use filter
let data = [{"id":213132},{"id":241132},{"id":465413},{"id":546351},{"id":164854,"data":[{"rate" : 20}]} ];
function hasData(key) { return !!data.filter(x=> x.id==key)[0].data }
console.log(hasData("213132"))
console.log(hasData("164854")) let data = [{"id":213132},{"id":241132},{"id":465413},{"id":546351},{"id":164854,"data":[{"rate" : 20}]} ];
function hasData(key) { return !!data.filter(x=> x.id==key)[0].data }
console.log(hasData("213132"))
console.log(hasData("164854")) let data = [{"id":213132},{"id":241132},{"id":465413},{"id":546351},{"id":164854,"data":[{"rate" : 20}]} ];
function hasData(key) { return !!data.filter(x=> x.id==key)[0].data }
console.log(hasData("213132"))
console.log(hasData("164854"))answered Nov 13 '18 at 6:49
AnoopAnoop
19.1k94768
answered Nov 13 '18 at 6:49
AnoopAnoop
19.1k94768
answered Nov 13 '18 at 6:49
AnoopAnoop
19.1k94768
answered Nov 13 '18 at 6:49
AnoopAnoop
19.1k94768
19.1k94768
add a comment |
add a comment |
1
You can use "Array.find" to check if id exists, and then you can convert the result to boolean by using "!!"
var arr = [{"id":213132},{"id":241132},{"id":465413},{"id":546351},{"id":164854,"data":[{"rate" : 20}]}]
function doesDataExist(id) {
return !!arr.find(d => d.id == id).data
}
console.log(doesDataExist(164854))
console.log(doesDataExist(213132))answered Nov 13 '18 at 6:49
Nitish NarangNitish Narang
2,948815
add a comment |
1
You can use "Array.find" to check if id exists, and then you can convert the result to boolean by using "!!"
var arr = [{"id":213132},{"id":241132},{"id":465413},{"id":546351},{"id":164854,"data":[{"rate" : 20}]}]
function doesDataExist(id) {
return !!arr.find(d => d.id == id).data
}
console.log(doesDataExist(164854))
console.log(doesDataExist(213132))answered Nov 13 '18 at 6:49
Nitish NarangNitish Narang
2,948815
add a comment |
1
1
1
You can use "Array.find" to check if id exists, and then you can convert the result to boolean by using "!!"
var arr = [{"id":213132},{"id":241132},{"id":465413},{"id":546351},{"id":164854,"data":[{"rate" : 20}]}]
function doesDataExist(id) {
return !!arr.find(d => d.id == id).data
}
console.log(doesDataExist(164854))
console.log(doesDataExist(213132))answered Nov 13 '18 at 6:49
Nitish NarangNitish Narang
2,948815
You can use "Array.find" to check if id exists, and then you can convert the result to boolean by using "!!"
var arr = [{"id":213132},{"id":241132},{"id":465413},{"id":546351},{"id":164854,"data":[{"rate" : 20}]}]
function doesDataExist(id) {
return !!arr.find(d => d.id == id).data
}
console.log(doesDataExist(164854))
console.log(doesDataExist(213132))var arr = [{"id":213132},{"id":241132},{"id":465413},{"id":546351},{"id":164854,"data":[{"rate" : 20}]}]
function doesDataExist(id) {
return !!arr.find(d => d.id == id).data
}
console.log(doesDataExist(164854))
console.log(doesDataExist(213132))var arr = [{"id":213132},{"id":241132},{"id":465413},{"id":546351},{"id":164854,"data":[{"rate" : 20}]}]
function doesDataExist(id) {
return !!arr.find(d => d.id == id).data
}
console.log(doesDataExist(164854))
console.log(doesDataExist(213132))answered Nov 13 '18 at 6:49
Nitish NarangNitish Narang
2,948815
answered Nov 13 '18 at 6:49
Nitish NarangNitish Narang
2,948815
answered Nov 13 '18 at 6:49
Nitish NarangNitish Narang
2,948815
answered Nov 13 '18 at 6:49
Nitish NarangNitish Narang
2,948815
2,948815
add a comment |
add a comment |
1
You can simply use Array.some(), it will return a boolean value based on the condition.
let arr= [{"id":213132},{"id":241132},{"id":465413},{"id":546351, "data":[{"id":1}]},{"id":164854}];
let id = 546351;
console.log(arr.some(obj => obj.id == id && !!obj.data));
id = 213132;
console.log(arr.some(obj => obj.id == id && !!obj.data));answered Nov 13 '18 at 6:52
amrender singhamrender singh
4,8131718
add a comment |
1
You can simply use Array.some(), it will return a boolean value based on the condition.
let arr= [{"id":213132},{"id":241132},{"id":465413},{"id":546351, "data":[{"id":1}]},{"id":164854}];
let id = 546351;
console.log(arr.some(obj => obj.id == id && !!obj.data));
id = 213132;
console.log(arr.some(obj => obj.id == id && !!obj.data));answered Nov 13 '18 at 6:52
amrender singhamrender singh
4,8131718
add a comment |
1
1
1
You can simply use Array.some(), it will return a boolean value based on the condition.
let arr= [{"id":213132},{"id":241132},{"id":465413},{"id":546351, "data":[{"id":1}]},{"id":164854}];
let id = 546351;
console.log(arr.some(obj => obj.id == id && !!obj.data));
id = 213132;
console.log(arr.some(obj => obj.id == id && !!obj.data));answered Nov 13 '18 at 6:52
amrender singhamrender singh
4,8131718
You can simply use Array.some(), it will return a boolean value based on the condition.
let arr= [{"id":213132},{"id":241132},{"id":465413},{"id":546351, "data":[{"id":1}]},{"id":164854}];
let id = 546351;
console.log(arr.some(obj => obj.id == id && !!obj.data));
id = 213132;
console.log(arr.some(obj => obj.id == id && !!obj.data));let arr= [{"id":213132},{"id":241132},{"id":465413},{"id":546351, "data":[{"id":1}]},{"id":164854}];
let id = 546351;
console.log(arr.some(obj => obj.id == id && !!obj.data));
id = 213132;
console.log(arr.some(obj => obj.id == id && !!obj.data));let arr= [{"id":213132},{"id":241132},{"id":465413},{"id":546351, "data":[{"id":1}]},{"id":164854}];
let id = 546351;
console.log(arr.some(obj => obj.id == id && !!obj.data));
id = 213132;
console.log(arr.some(obj => obj.id == id && !!obj.data));answered Nov 13 '18 at 6:52
amrender singhamrender singh
4,8131718
answered Nov 13 '18 at 6:52
amrender singhamrender singh
4,8131718
answered Nov 13 '18 at 6:52
amrender singhamrender singh
4,8131718
answered Nov 13 '18 at 6:52
amrender singhamrender singh
4,8131718
4,8131718
add a comment |
add a comment |
1
you can use findIndex function to find the particular id
let id = 241132;
let index = arr.findIndex((data)=> data.id == id)
index==-1 ? console.log("not find") : console.log("find index=>"+index)
answered Nov 13 '18 at 7:29
HarisHaris
679
add a comment |
1
you can use findIndex function to find the particular id
let id = 241132;
let index = arr.findIndex((data)=> data.id == id)
index==-1 ? console.log("not find") : console.log("find index=>"+index)
answered Nov 13 '18 at 7:29
HarisHaris
679
add a comment |
1
1
1
you can use findIndex function to find the particular id
let id = 241132;
let index = arr.findIndex((data)=> data.id == id)
index==-1 ? console.log("not find") : console.log("find index=>"+index)
answered Nov 13 '18 at 7:29
HarisHaris
679
you can use findIndex function to find the particular id
let id = 241132;
let index = arr.findIndex((data)=> data.id == id)
index==-1 ? console.log("not find") : console.log("find index=>"+index)
answered Nov 13 '18 at 7:29
HarisHaris
679
answered Nov 13 '18 at 7:29
HarisHaris
679
answered Nov 13 '18 at 7:29
HarisHaris
679
answered Nov 13 '18 at 7:29
HarisHaris
679
679
add a comment |
add a comment |
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