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Get specific key depth in object with key value
The 2019 Stack Overflow Developer Survey Results Are InHow to check the depth of an object?What is the most efficient way to deep clone an object in JavaScript?How can I merge properties of two JavaScript objects dynamically?How do I remove a property from a JavaScript object?endsWith in JavaScriptIs JavaScript a pass-by-reference or pass-by-value language?How can I get query string values in JavaScript?How can I display a JavaScript object?Checking if a key exists in a JavaScript object?Convert form data to JavaScript object with jQueryStoring Objects in HTML5 localStorage
.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty height:90px;width:728px;box-sizing:border-box;
const item =
id: 'item1',
children: [
id: 'item1-1',
children: [
id: 'item1-1-1' ,
id: 'item1-1-2' ,
id: 'item1-1-3' ,
]
,
id: 'item1-2',
children: [
id: 'item1-2-1'
]
]
Like this,
function getLevelOfId()
...
getLevelOfId('item1') =====> return 1
getLevelOfId('item1-2') =====> return 2
getLevelOfId('item1-1-1') =====> return 3
getLevelOfId('item1-1-2') =====> return 3
How to get specific object's depth with JavaScript?
Not use of id string. like ('item1-2').split('-').length Because each object has randomic id. Is there a simple way?
javascript
asked Mar 8 at 8:15
JuntaeJuntae
1,56842764
add a comment |
const item =
id: 'item1',
children: [
id: 'item1-1',
children: [
id: 'item1-1-1' ,
id: 'item1-1-2' ,
id: 'item1-1-3' ,
]
,
id: 'item1-2',
children: [
id: 'item1-2-1'
]
]
Like this,
function getLevelOfId()
...
getLevelOfId('item1') =====> return 1
getLevelOfId('item1-2') =====> return 2
getLevelOfId('item1-1-1') =====> return 3
getLevelOfId('item1-1-2') =====> return 3
How to get specific object's depth with JavaScript?
Not use of id string. like ('item1-2').split('-').length Because each object has randomic id. Is there a simple way?
javascript
asked Mar 8 at 8:15
JuntaeJuntae
1,56842764
Hi! Please take the tour (you get a badge!) and read through the help center, in particular How do I ask a good question? Your best bet here is to do your research, search for related topics on SO, and give it a go. (You'll probably want to use recursion.) If you get stuck and can't get unstuck after doing more research and searching, post a Minimal, Complete, and Verifiable example of your attempt and say specifically where you're stuck. People will be glad to help.
– T.J. Crowder
Mar 8 at 8:19
Possible duplicate of How to check the depth of an object?
– Souritra Das Gupta
Mar 8 at 8:22
@SouritraDasGupta It's different. That question is aboutmaximum depthand this is aboutspecific depth.
– Juntae
Mar 8 at 9:31
add a comment |
const item =
id: 'item1',
children: [
id: 'item1-1',
children: [
id: 'item1-1-1' ,
id: 'item1-1-2' ,
id: 'item1-1-3' ,
]
,
id: 'item1-2',
children: [
id: 'item1-2-1'
]
]
Like this,
function getLevelOfId()
...
getLevelOfId('item1') =====> return 1
getLevelOfId('item1-2') =====> return 2
getLevelOfId('item1-1-1') =====> return 3
getLevelOfId('item1-1-2') =====> return 3
How to get specific object's depth with JavaScript?
Not use of id string. like ('item1-2').split('-').length Because each object has randomic id. Is there a simple way?
javascript
asked Mar 8 at 8:15
JuntaeJuntae
1,56842764
const item =
id: 'item1',
children: [
id: 'item1-1',
children: [
id: 'item1-1-1' ,
id: 'item1-1-2' ,
id: 'item1-1-3' ,
]
,
id: 'item1-2',
children: [
id: 'item1-2-1'
]
]
Like this,
function getLevelOfId()
...
getLevelOfId('item1') =====> return 1
getLevelOfId('item1-2') =====> return 2
getLevelOfId('item1-1-1') =====> return 3
getLevelOfId('item1-1-2') =====> return 3
How to get specific object's depth with JavaScript?
Not use of id string. like ('item1-2').split('-').length Because each object has randomic id. Is there a simple way?
javascript
javascript
asked Mar 8 at 8:15
JuntaeJuntae
1,56842764
asked Mar 8 at 8:15
JuntaeJuntae
1,56842764
edited Mar 8 at 9:13
Juntae
asked Mar 8 at 8:15
JuntaeJuntae
1,56842764
asked Mar 8 at 8:15
JuntaeJuntae
1,56842764
asked Mar 8 at 8:15
JuntaeJuntae
1,56842764
1,56842764
Hi! Please take the tour (you get a badge!) and read through the help center, in particular How do I ask a good question? Your best bet here is to do your research, search for related topics on SO, and give it a go. (You'll probably want to use recursion.) If you get stuck and can't get unstuck after doing more research and searching, post a Minimal, Complete, and Verifiable example of your attempt and say specifically where you're stuck. People will be glad to help.
– T.J. Crowder
Mar 8 at 8:19
Possible duplicate of How to check the depth of an object?
– Souritra Das Gupta
Mar 8 at 8:22
@SouritraDasGupta It's different. That question is aboutmaximum depthand this is aboutspecific depth.
– Juntae
Mar 8 at 9:31
add a comment |
Hi! Please take the tour (you get a badge!) and read through the help center, in particular How do I ask a good question? Your best bet here is to do your research, search for related topics on SO, and give it a go. (You'll probably want to use recursion.) If you get stuck and can't get unstuck after doing more research and searching, post a Minimal, Complete, and Verifiable example of your attempt and say specifically where you're stuck. People will be glad to help.
– T.J. Crowder
Mar 8 at 8:19
Possible duplicate of How to check the depth of an object?
– Souritra Das Gupta
Mar 8 at 8:22
@SouritraDasGupta It's different. That question is aboutmaximum depthand this is aboutspecific depth.
– Juntae
Mar 8 at 9:31
Hi! Please take the tour (you get a badge!) and read through the help center, in particular How do I ask a good question? Your best bet here is to do your research, search for related topics on SO, and give it a go. (You'll probably want to use recursion.) If you get stuck and can't get unstuck after doing more research and searching, post a Minimal, Complete, and Verifiable example of your attempt and say specifically where you're stuck. People will be glad to help.
– T.J. Crowder
Mar 8 at 8:19
Hi! Please take the tour (you get a badge!) and read through the help center, in particular How do I ask a good question? Your best bet here is to do your research, search for related topics on SO, and give it a go. (You'll probably want to use recursion.) If you get stuck and can't get unstuck after doing more research and searching, post a Minimal, Complete, and Verifiable example of your attempt and say specifically where you're stuck. People will be glad to help.
– T.J. Crowder
Mar 8 at 8:19
Possible duplicate of How to check the depth of an object?
– Souritra Das Gupta
Mar 8 at 8:22
Possible duplicate of How to check the depth of an object?
– Souritra Das Gupta
Mar 8 at 8:22
@SouritraDasGupta It's different. That question is about
maximum depth and this is about specific depth.– Juntae
Mar 8 at 9:31
@SouritraDasGupta It's different. That question is about
maximum depth and this is about specific depth.– Juntae
Mar 8 at 9:31
add a comment |
2 Answers
2
active
oldest
votes
You need to iterate all objects and if found, take one for each level for the recursion depth.
function getLevelOfId(object, id)
var level;
if (object.id === id) return 1;
object.children && object.children.some(o => level = getLevelOfId(o, id));
return level && level + 1;
const item = id: 'item1', children: [ id: 'item1-1', children: [ id: 'item1-1-1' , id: 'item1-1-2' , id: 'item1-1-3' ] , id: 'item1-2', children: [ id: 'item1-2-1' ] ] ;
console.log(getLevelOfId(item, 'item1')); // 1
console.log(getLevelOfId(item, 'item1-2')); // 2
console.log(getLevelOfId(item, 'item1-1-1')); // 3
console.log(getLevelOfId(item, 'item1-1-2')); // 3
console.log(getLevelOfId(item, 'foo')); // undefinedanswered Mar 8 at 8:35
Nina ScholzNina Scholz
197k15109179
add a comment |
if the structure id & children is fixed, how about search the whole value like "item1-1-1" in the json string:
"id":"item1","children":["id":"item1-1","children":["id":"item1-1-1","id":"item1-1-2","id":"item1-1-3"],"id":"item1-2","children":["id":"item1-2-1"]]
level = (number of "") - (number of "") // before the searched positon of the string
answered Mar 8 at 8:52
niebennieben
445
The case of itemitem1-1-1and itemitem1-1-2, these two has same level. Perhaps the result of both will be different.
– Juntae
Mar 8 at 9:29
if the structure is fixed, the results are the same, as indicated, the number of "}" is considered too, so item1-1-1 = 3 - 0, item1-1-2 = 4 - 1
– nieben
Mar 8 at 10:04
Oh, I didn't know that. That makes sense! I will try this way too!
– Juntae
Mar 8 at 10:22
add a comment |
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2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
active
oldest
votes
active
oldest
votes
You need to iterate all objects and if found, take one for each level for the recursion depth.
function getLevelOfId(object, id)
var level;
if (object.id === id) return 1;
object.children && object.children.some(o => level = getLevelOfId(o, id));
return level && level + 1;
const item = id: 'item1', children: [ id: 'item1-1', children: [ id: 'item1-1-1' , id: 'item1-1-2' , id: 'item1-1-3' ] , id: 'item1-2', children: [ id: 'item1-2-1' ] ] ;
console.log(getLevelOfId(item, 'item1')); // 1
console.log(getLevelOfId(item, 'item1-2')); // 2
console.log(getLevelOfId(item, 'item1-1-1')); // 3
console.log(getLevelOfId(item, 'item1-1-2')); // 3
console.log(getLevelOfId(item, 'foo')); // undefinedanswered Mar 8 at 8:35
Nina ScholzNina Scholz
197k15109179
add a comment |
You need to iterate all objects and if found, take one for each level for the recursion depth.
function getLevelOfId(object, id)
var level;
if (object.id === id) return 1;
object.children && object.children.some(o => level = getLevelOfId(o, id));
return level && level + 1;
const item = id: 'item1', children: [ id: 'item1-1', children: [ id: 'item1-1-1' , id: 'item1-1-2' , id: 'item1-1-3' ] , id: 'item1-2', children: [ id: 'item1-2-1' ] ] ;
console.log(getLevelOfId(item, 'item1')); // 1
console.log(getLevelOfId(item, 'item1-2')); // 2
console.log(getLevelOfId(item, 'item1-1-1')); // 3
console.log(getLevelOfId(item, 'item1-1-2')); // 3
console.log(getLevelOfId(item, 'foo')); // undefinedanswered Mar 8 at 8:35
Nina ScholzNina Scholz
197k15109179
add a comment |
You need to iterate all objects and if found, take one for each level for the recursion depth.
function getLevelOfId(object, id)
var level;
if (object.id === id) return 1;
object.children && object.children.some(o => level = getLevelOfId(o, id));
return level && level + 1;
const item = id: 'item1', children: [ id: 'item1-1', children: [ id: 'item1-1-1' , id: 'item1-1-2' , id: 'item1-1-3' ] , id: 'item1-2', children: [ id: 'item1-2-1' ] ] ;
console.log(getLevelOfId(item, 'item1')); // 1
console.log(getLevelOfId(item, 'item1-2')); // 2
console.log(getLevelOfId(item, 'item1-1-1')); // 3
console.log(getLevelOfId(item, 'item1-1-2')); // 3
console.log(getLevelOfId(item, 'foo')); // undefinedanswered Mar 8 at 8:35
Nina ScholzNina Scholz
197k15109179
You need to iterate all objects and if found, take one for each level for the recursion depth.
function getLevelOfId(object, id)
var level;
if (object.id === id) return 1;
object.children && object.children.some(o => level = getLevelOfId(o, id));
return level && level + 1;
const item = id: 'item1', children: [ id: 'item1-1', children: [ id: 'item1-1-1' , id: 'item1-1-2' , id: 'item1-1-3' ] , id: 'item1-2', children: [ id: 'item1-2-1' ] ] ;
console.log(getLevelOfId(item, 'item1')); // 1
console.log(getLevelOfId(item, 'item1-2')); // 2
console.log(getLevelOfId(item, 'item1-1-1')); // 3
console.log(getLevelOfId(item, 'item1-1-2')); // 3
console.log(getLevelOfId(item, 'foo')); // undefinedfunction getLevelOfId(object, id)
var level;
if (object.id === id) return 1;
object.children && object.children.some(o => level = getLevelOfId(o, id));
return level && level + 1;
const item = id: 'item1', children: [ id: 'item1-1', children: [ id: 'item1-1-1' , id: 'item1-1-2' , id: 'item1-1-3' ] , id: 'item1-2', children: [ id: 'item1-2-1' ] ] ;
console.log(getLevelOfId(item, 'item1')); // 1
console.log(getLevelOfId(item, 'item1-2')); // 2
console.log(getLevelOfId(item, 'item1-1-1')); // 3
console.log(getLevelOfId(item, 'item1-1-2')); // 3
console.log(getLevelOfId(item, 'foo')); // undefinedfunction getLevelOfId(object, id)
var level;
if (object.id === id) return 1;
object.children && object.children.some(o => level = getLevelOfId(o, id));
return level && level + 1;
const item = id: 'item1', children: [ id: 'item1-1', children: [ id: 'item1-1-1' , id: 'item1-1-2' , id: 'item1-1-3' ] , id: 'item1-2', children: [ id: 'item1-2-1' ] ] ;
console.log(getLevelOfId(item, 'item1')); // 1
console.log(getLevelOfId(item, 'item1-2')); // 2
console.log(getLevelOfId(item, 'item1-1-1')); // 3
console.log(getLevelOfId(item, 'item1-1-2')); // 3
console.log(getLevelOfId(item, 'foo')); // undefinedanswered Mar 8 at 8:35
Nina ScholzNina Scholz
197k15109179
answered Mar 8 at 8:35
Nina ScholzNina Scholz
197k15109179
answered Mar 8 at 8:35
Nina ScholzNina Scholz
197k15109179
answered Mar 8 at 8:35
Nina ScholzNina Scholz
197k15109179
197k15109179
add a comment |
add a comment |
if the structure id & children is fixed, how about search the whole value like "item1-1-1" in the json string:
"id":"item1","children":["id":"item1-1","children":["id":"item1-1-1","id":"item1-1-2","id":"item1-1-3"],"id":"item1-2","children":["id":"item1-2-1"]]
level = (number of "") - (number of "") // before the searched positon of the string
answered Mar 8 at 8:52
niebennieben
445
The case of itemitem1-1-1and itemitem1-1-2, these two has same level. Perhaps the result of both will be different.
– Juntae
Mar 8 at 9:29
if the structure is fixed, the results are the same, as indicated, the number of "}" is considered too, so item1-1-1 = 3 - 0, item1-1-2 = 4 - 1
– nieben
Mar 8 at 10:04
Oh, I didn't know that. That makes sense! I will try this way too!
– Juntae
Mar 8 at 10:22
add a comment |
if the structure id & children is fixed, how about search the whole value like "item1-1-1" in the json string:
"id":"item1","children":["id":"item1-1","children":["id":"item1-1-1","id":"item1-1-2","id":"item1-1-3"],"id":"item1-2","children":["id":"item1-2-1"]]
level = (number of "") - (number of "") // before the searched positon of the string
answered Mar 8 at 8:52
niebennieben
445
The case of itemitem1-1-1and itemitem1-1-2, these two has same level. Perhaps the result of both will be different.
– Juntae
Mar 8 at 9:29
if the structure is fixed, the results are the same, as indicated, the number of "}" is considered too, so item1-1-1 = 3 - 0, item1-1-2 = 4 - 1
– nieben
Mar 8 at 10:04
Oh, I didn't know that. That makes sense! I will try this way too!
– Juntae
Mar 8 at 10:22
add a comment |
if the structure id & children is fixed, how about search the whole value like "item1-1-1" in the json string:
"id":"item1","children":["id":"item1-1","children":["id":"item1-1-1","id":"item1-1-2","id":"item1-1-3"],"id":"item1-2","children":["id":"item1-2-1"]]
level = (number of "") - (number of "") // before the searched positon of the string
answered Mar 8 at 8:52
niebennieben
445
if the structure id & children is fixed, how about search the whole value like "item1-1-1" in the json string:
"id":"item1","children":["id":"item1-1","children":["id":"item1-1-1","id":"item1-1-2","id":"item1-1-3"],"id":"item1-2","children":["id":"item1-2-1"]]
level = (number of "") - (number of "") // before the searched positon of the string
answered Mar 8 at 8:52
niebennieben
445
edited Mar 8 at 8:57
answered Mar 8 at 8:52
niebennieben
445
answered Mar 8 at 8:52
niebennieben
445
answered Mar 8 at 8:52
niebennieben
445
445
The case of itemitem1-1-1and itemitem1-1-2, these two has same level. Perhaps the result of both will be different.
– Juntae
Mar 8 at 9:29
if the structure is fixed, the results are the same, as indicated, the number of "}" is considered too, so item1-1-1 = 3 - 0, item1-1-2 = 4 - 1
– nieben
Mar 8 at 10:04
Oh, I didn't know that. That makes sense! I will try this way too!
– Juntae
Mar 8 at 10:22
add a comment |
The case of itemitem1-1-1and itemitem1-1-2, these two has same level. Perhaps the result of both will be different.
– Juntae
Mar 8 at 9:29
if the structure is fixed, the results are the same, as indicated, the number of "}" is considered too, so item1-1-1 = 3 - 0, item1-1-2 = 4 - 1
– nieben
Mar 8 at 10:04
Oh, I didn't know that. That makes sense! I will try this way too!
– Juntae
Mar 8 at 10:22
The case of item
item1-1-1 and item item1-1-2, these two has same level. Perhaps the result of both will be different.– Juntae
Mar 8 at 9:29
The case of item
item1-1-1 and item item1-1-2, these two has same level. Perhaps the result of both will be different.– Juntae
Mar 8 at 9:29
if the structure is fixed, the results are the same, as indicated, the number of "}" is considered too, so item1-1-1 = 3 - 0, item1-1-2 = 4 - 1
– nieben
Mar 8 at 10:04
if the structure is fixed, the results are the same, as indicated, the number of "}" is considered too, so item1-1-1 = 3 - 0, item1-1-2 = 4 - 1
– nieben
Mar 8 at 10:04
Oh, I didn't know that. That makes sense! I will try this way too!
– Juntae
Mar 8 at 10:22
Oh, I didn't know that. That makes sense! I will try this way too!
– Juntae
Mar 8 at 10:22
add a comment |
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Hi! Please take the tour (you get a badge!) and read through the help center, in particular How do I ask a good question? Your best bet here is to do your research, search for related topics on SO, and give it a go. (You'll probably want to use recursion.) If you get stuck and can't get unstuck after doing more research and searching, post a Minimal, Complete, and Verifiable example of your attempt and say specifically where you're stuck. People will be glad to help.
– T.J. Crowder
Mar 8 at 8:19
Possible duplicate of How to check the depth of an object?
– Souritra Das Gupta
Mar 8 at 8:22
@SouritraDasGupta It's different. That question is about
maximum depthand this is aboutspecific depth.– Juntae
Mar 8 at 9:31