maximum value of a substring in an array
-2
var arr = ["subId":"dfsfsdfsdfSUB201800099","userID":"dfsfsdfsdf"}, {""subId":"dfsfsdfsdfSUB201800139","userID":"dfsfsdfsdf"}, {""subId":"dfsfsdfsdfSUB201700649","userID":"dfsfsdfsdf"} , {}, {}............]
I have an array , I want to find the value of subId which contains "dfsfsdfsdfSUB2017" and is the maximum 00139 in this example.
javascript arrays lodash
asked Nov 19 '18 at 13:19
Saurav kumarSaurav kumar
55117
add a comment |
-2
var arr = ["subId":"dfsfsdfsdfSUB201800099","userID":"dfsfsdfsdf"}, {""subId":"dfsfsdfsdfSUB201800139","userID":"dfsfsdfsdf"}, {""subId":"dfsfsdfsdfSUB201700649","userID":"dfsfsdfsdf"} , {}, {}............]
I have an array , I want to find the value of subId which contains "dfsfsdfsdfSUB2017" and is the maximum 00139 in this example.
javascript arrays lodash
asked Nov 19 '18 at 13:19
Saurav kumarSaurav kumar
55117
1
can please provide what you had already try
– Constantin Guidon
Nov 19 '18 at 13:23
tried using _lodash.maxBy
– Saurav kumar
Nov 19 '18 at 13:49
add a comment |
-2
-2
-2
var arr = ["subId":"dfsfsdfsdfSUB201800099","userID":"dfsfsdfsdf"}, {""subId":"dfsfsdfsdfSUB201800139","userID":"dfsfsdfsdf"}, {""subId":"dfsfsdfsdfSUB201700649","userID":"dfsfsdfsdf"} , {}, {}............]
I have an array , I want to find the value of subId which contains "dfsfsdfsdfSUB2017" and is the maximum 00139 in this example.
javascript arrays lodash
asked Nov 19 '18 at 13:19
Saurav kumarSaurav kumar
55117
var arr = ["subId":"dfsfsdfsdfSUB201800099","userID":"dfsfsdfsdf"}, {""subId":"dfsfsdfsdfSUB201800139","userID":"dfsfsdfsdf"}, {""subId":"dfsfsdfsdfSUB201700649","userID":"dfsfsdfsdf"} , {}, {}............]
I have an array , I want to find the value of subId which contains "dfsfsdfsdfSUB2017" and is the maximum 00139 in this example.
javascript arrays lodash
javascript arrays lodash
asked Nov 19 '18 at 13:19
Saurav kumarSaurav kumar
55117
asked Nov 19 '18 at 13:19
Saurav kumarSaurav kumar
55117
asked Nov 19 '18 at 13:19
Saurav kumarSaurav kumar
55117
asked Nov 19 '18 at 13:19
Saurav kumarSaurav kumar
55117
asked Nov 19 '18 at 13:19
Saurav kumarSaurav kumar
55117
55117
1
can please provide what you had already try
– Constantin Guidon
Nov 19 '18 at 13:23
tried using _lodash.maxBy
– Saurav kumar
Nov 19 '18 at 13:49
add a comment |
1
can please provide what you had already try
– Constantin Guidon
Nov 19 '18 at 13:23
tried using _lodash.maxBy
– Saurav kumar
Nov 19 '18 at 13:49
1
1
can please provide what you had already try
– Constantin Guidon
Nov 19 '18 at 13:23
can please provide what you had already try
– Constantin Guidon
Nov 19 '18 at 13:23
tried using _lodash.maxBy
– Saurav kumar
Nov 19 '18 at 13:49
tried using _lodash.maxBy
– Saurav kumar
Nov 19 '18 at 13:49
add a comment |
1 Answer
1
active
oldest
votes
0
This might help you:
let someArray = [{
"subId": "dfsfsdfsdfSUB201800099",
"userID": "dfsfsdfsdf"
}, {
"subId": "dfsfsdfsdfSUB201800139",
"userID": "dfsfsdfsdf"
}, {
"subId": "dfsfsdfsdfSUB201700649",
"userID": "dfsfsdfsdf"
}]
let ids = someArray.map(item => parseInt(item.subId.split('dfsfsdfsdfSUB')[1]))
console.log(Math.max(...ids))answered Nov 19 '18 at 13:25
Arulmozhi ManikandanArulmozhi Manikandan
1766
dfsfsdfsdfSUB2017 != dfsfsdfsdfSUB!!! and also where is the checking for contains?
– Mamun
Nov 19 '18 at 13:27
that would be good safety check before trying to split, I agree but I went the assumption the dfsfsdfsdfSUB will be there in all subId, so I didn't check, But I agree it is always good to check.
– Arulmozhi Manikandan
Nov 19 '18 at 13:32
Then the map would something like blowlet ids = someArray.map(item => parseInt(item.subId.includes('dfsfsdfsdfSUB')&& item.subId.split('dfsfsdfsdfSUB')[1]))
– Arulmozhi Manikandan
Nov 19 '18 at 13:34
add a comment |
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1 Answer
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0
This might help you:
let someArray = [{
"subId": "dfsfsdfsdfSUB201800099",
"userID": "dfsfsdfsdf"
}, {
"subId": "dfsfsdfsdfSUB201800139",
"userID": "dfsfsdfsdf"
}, {
"subId": "dfsfsdfsdfSUB201700649",
"userID": "dfsfsdfsdf"
}]
let ids = someArray.map(item => parseInt(item.subId.split('dfsfsdfsdfSUB')[1]))
console.log(Math.max(...ids))answered Nov 19 '18 at 13:25
Arulmozhi ManikandanArulmozhi Manikandan
1766
dfsfsdfsdfSUB2017 != dfsfsdfsdfSUB!!! and also where is the checking for contains?
– Mamun
Nov 19 '18 at 13:27
that would be good safety check before trying to split, I agree but I went the assumption the dfsfsdfsdfSUB will be there in all subId, so I didn't check, But I agree it is always good to check.
– Arulmozhi Manikandan
Nov 19 '18 at 13:32
Then the map would something like blowlet ids = someArray.map(item => parseInt(item.subId.includes('dfsfsdfsdfSUB')&& item.subId.split('dfsfsdfsdfSUB')[1]))
– Arulmozhi Manikandan
Nov 19 '18 at 13:34
add a comment |
0
This might help you:
let someArray = [{
"subId": "dfsfsdfsdfSUB201800099",
"userID": "dfsfsdfsdf"
}, {
"subId": "dfsfsdfsdfSUB201800139",
"userID": "dfsfsdfsdf"
}, {
"subId": "dfsfsdfsdfSUB201700649",
"userID": "dfsfsdfsdf"
}]
let ids = someArray.map(item => parseInt(item.subId.split('dfsfsdfsdfSUB')[1]))
console.log(Math.max(...ids))answered Nov 19 '18 at 13:25
Arulmozhi ManikandanArulmozhi Manikandan
1766
dfsfsdfsdfSUB2017 != dfsfsdfsdfSUB!!! and also where is the checking for contains?
– Mamun
Nov 19 '18 at 13:27
that would be good safety check before trying to split, I agree but I went the assumption the dfsfsdfsdfSUB will be there in all subId, so I didn't check, But I agree it is always good to check.
– Arulmozhi Manikandan
Nov 19 '18 at 13:32
Then the map would something like blowlet ids = someArray.map(item => parseInt(item.subId.includes('dfsfsdfsdfSUB')&& item.subId.split('dfsfsdfsdfSUB')[1]))
– Arulmozhi Manikandan
Nov 19 '18 at 13:34
add a comment |
0
0
0
This might help you:
let someArray = [{
"subId": "dfsfsdfsdfSUB201800099",
"userID": "dfsfsdfsdf"
}, {
"subId": "dfsfsdfsdfSUB201800139",
"userID": "dfsfsdfsdf"
}, {
"subId": "dfsfsdfsdfSUB201700649",
"userID": "dfsfsdfsdf"
}]
let ids = someArray.map(item => parseInt(item.subId.split('dfsfsdfsdfSUB')[1]))
console.log(Math.max(...ids))answered Nov 19 '18 at 13:25
Arulmozhi ManikandanArulmozhi Manikandan
1766
This might help you:
let someArray = [{
"subId": "dfsfsdfsdfSUB201800099",
"userID": "dfsfsdfsdf"
}, {
"subId": "dfsfsdfsdfSUB201800139",
"userID": "dfsfsdfsdf"
}, {
"subId": "dfsfsdfsdfSUB201700649",
"userID": "dfsfsdfsdf"
}]
let ids = someArray.map(item => parseInt(item.subId.split('dfsfsdfsdfSUB')[1]))
console.log(Math.max(...ids))let someArray = [{
"subId": "dfsfsdfsdfSUB201800099",
"userID": "dfsfsdfsdf"
}, {
"subId": "dfsfsdfsdfSUB201800139",
"userID": "dfsfsdfsdf"
}, {
"subId": "dfsfsdfsdfSUB201700649",
"userID": "dfsfsdfsdf"
}]
let ids = someArray.map(item => parseInt(item.subId.split('dfsfsdfsdfSUB')[1]))
console.log(Math.max(...ids))let someArray = [{
"subId": "dfsfsdfsdfSUB201800099",
"userID": "dfsfsdfsdf"
}, {
"subId": "dfsfsdfsdfSUB201800139",
"userID": "dfsfsdfsdf"
}, {
"subId": "dfsfsdfsdfSUB201700649",
"userID": "dfsfsdfsdf"
}]
let ids = someArray.map(item => parseInt(item.subId.split('dfsfsdfsdfSUB')[1]))
console.log(Math.max(...ids))answered Nov 19 '18 at 13:25
Arulmozhi ManikandanArulmozhi Manikandan
1766
answered Nov 19 '18 at 13:25
Arulmozhi ManikandanArulmozhi Manikandan
1766
answered Nov 19 '18 at 13:25
Arulmozhi ManikandanArulmozhi Manikandan
1766
answered Nov 19 '18 at 13:25
Arulmozhi ManikandanArulmozhi Manikandan
1766
1766
dfsfsdfsdfSUB2017 != dfsfsdfsdfSUB!!! and also where is the checking for contains?
– Mamun
Nov 19 '18 at 13:27
that would be good safety check before trying to split, I agree but I went the assumption the dfsfsdfsdfSUB will be there in all subId, so I didn't check, But I agree it is always good to check.
– Arulmozhi Manikandan
Nov 19 '18 at 13:32
Then the map would something like blowlet ids = someArray.map(item => parseInt(item.subId.includes('dfsfsdfsdfSUB')&& item.subId.split('dfsfsdfsdfSUB')[1]))
– Arulmozhi Manikandan
Nov 19 '18 at 13:34
add a comment |
dfsfsdfsdfSUB2017 != dfsfsdfsdfSUB!!! and also where is the checking for contains?
– Mamun
Nov 19 '18 at 13:27
that would be good safety check before trying to split, I agree but I went the assumption the dfsfsdfsdfSUB will be there in all subId, so I didn't check, But I agree it is always good to check.
– Arulmozhi Manikandan
Nov 19 '18 at 13:32
Then the map would something like blowlet ids = someArray.map(item => parseInt(item.subId.includes('dfsfsdfsdfSUB')&& item.subId.split('dfsfsdfsdfSUB')[1]))
– Arulmozhi Manikandan
Nov 19 '18 at 13:34
dfsfsdfsdfSUB2017 != dfsfsdfsdfSUB!!! and also where is the checking for contains?– Mamun
Nov 19 '18 at 13:27
dfsfsdfsdfSUB2017 != dfsfsdfsdfSUB!!! and also where is the checking for contains?– Mamun
Nov 19 '18 at 13:27
that would be good safety check before trying to split, I agree but I went the assumption the dfsfsdfsdfSUB will be there in all subId, so I didn't check, But I agree it is always good to check.
– Arulmozhi Manikandan
Nov 19 '18 at 13:32
that would be good safety check before trying to split, I agree but I went the assumption the dfsfsdfsdfSUB will be there in all subId, so I didn't check, But I agree it is always good to check.
– Arulmozhi Manikandan
Nov 19 '18 at 13:32
Then the map would something like blow
let ids = someArray.map(item => parseInt(item.subId.includes('dfsfsdfsdfSUB')&& item.subId.split('dfsfsdfsdfSUB')[1]))– Arulmozhi Manikandan
Nov 19 '18 at 13:34
Then the map would something like blow
let ids = someArray.map(item => parseInt(item.subId.includes('dfsfsdfsdfSUB')&& item.subId.split('dfsfsdfsdfSUB')[1]))– Arulmozhi Manikandan
Nov 19 '18 at 13:34
add a comment |
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1
can please provide what you had already try
– Constantin Guidon
Nov 19 '18 at 13:23
tried using _lodash.maxBy
– Saurav kumar
Nov 19 '18 at 13:49