如何识别一个div完全包含到另一个div中？我有2个div说A和B。当我拖动到A时，我需要知道A完全包含在B内，并且与A没有重叠
答案 0 :(得分：3)
使用可以将IntersectionObserver用于此任务。
let options = {
root: document.querySelector('#container'),
rootMargin: '0px',
};
let callback = entries => {
entries.forEach(entry => {
if (entry.intersectionRatio >= 1) {
console.log("#" + entry.target.id + " is fully inside #container");
}
else {
console.log("#" + entry.target.id + " is NOT fully inside #container");
}
});
};
let observer = new IntersectionObserver(callback, options);
observer.observe(document.querySelector('#inner'));
observer.observe(document.querySelector('#outer'));#container {
width: 100px;
height: 100px;
background: blue;
position: relative;
}
#inner, #outer {
width: 50px;
height: 50px;
background: green;
position: absolute;
}
#outer {
background: red;
right: -10px;
}<div id="container">
<div id="inner"></div>
<div id="outer"></div>
</div>
答案 1 :(得分：2)
如果我答对了，您可以手动进行：
Plan hash value: 1854531935
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| Id | Operation | Name | Rows | Bytes |TempSpc| Cost (%CPU)| Time |
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| 0 | SELECT STATEMENT | | 1 | 1595 | | 35623 (1)| 00:07:08 |
| 1 | SORT GROUP BY | | 1 | 1595 | | 35623 (1)| 00:07:08 |
|* 2 | FILTER | | | | | | |
| 3 | NESTED LOOPS | | 10 | 15950 | | 35612 (1)| 00:07:08 |
| 4 | NESTED LOOPS | | 10 | 15950 | | 35612 (1)| 00:07:08 |
| 5 | NESTED LOOPS | | 10 | 15720 | | 35611 (1)| 00:07:08 |
| 6 | NESTED LOOPS | | 10 | 15490 | | 35610 (1)| 00:07:08 |
| 7 | NESTED LOOPS | | 10 | 15300 | | 35609 (1)| 00:07:08 |
|* 8 | HASH JOIN | | 10 | 15230 | | 35608 (1)| 00:07:08 |
| 9 | NESTED LOOPS | | 2 | 148 | | 130 (0)| 00:00:02 |
| 10 | NESTED LOOPS | | 2 | 134 | | 129 (0)| 00:00:02 |
| 11 | NESTED LOOPS | | 2 | 100 | | 128 (0)| 00:00:02 |
|* 12 | TABLE ACCESS FULL | STRINGDEFINITION | 1 | 28 | | 10 (0)| 00:00:01 |
|* 13 | TABLE ACCESS BY INDEX ROWID | STRINGVALUE | 2 | 44 | | 118 (0)| 00:00:02 |
|* 14 | INDEX RANGE SCAN | STRINGVALUE$COMPOSITE2 | 5780 | | | 2 (0)| 00:00:01 |
|* 15 | TABLE ACCESS BY INDEX ROWID | WTPART | 1 | 17 | | 1 (0)| 00:00:01 |
|* 16 | INDEX UNIQUE SCAN | PK_WTPART | 1 | | | 1 (0)| 00:00:01 |
|* 17 | INDEX UNIQUE SCAN | PK_WTPARTMASTER | 1 | 7 | | 1 (0)| 00:00:01 |
| 18 | VIEW | | 1062K| 1467M| | 35476 (1)| 00:07:06 |
| 19 | UNION-ALL | | | | | | |
|* 20 | HASH JOIN | | 898K| 110M| | 27326 (1)| 00:05:28 |
| 21 | TABLE ACCESS FULL | STRINGDEFINITION | 677 | 18956 | | 10 (0)| 00:00:01 |
|* 22 | HASH JOIN | | 898K| 86M| 7312K| 27314 (1)| 00:05:28 |
|* 23 | HASH JOIN | | 82231 | 6343K| 3616K| 3490 (1)| 00:00:42 |
| 24 | TABLE ACCESS BY INDEX ROWID | WTPART | 82231 | 2650K| | 2741 (1)| 00:00:33 |
|* 25 | INDEX SKIP SCAN | WTPART$COMPOSITE14 | 82231 | | | 52 (0)| 00:00:01 |
| 26 | VIEW | index$_join$_004 | 71824 | 3226K| | 377 (1)| 00:00:05 |
|* 27 | HASH JOIN | | | | | | |
| 28 | INDEX FAST FULL SCAN | WTPARTMASTER$COMPOSITE3 | 71824 | 3226K| | 59 (0)| 00:00:01 |
| 29 | INDEX FAST FULL SCAN | WTPARTMASTER$COMPOSITE | 71824 | 3226K| | 28 (0)| 00:00:01 |
| 30 | TABLE ACCESS FULL | STRINGVALUE | 3080K| 64M| | 18503 (1)| 00:03:43 |
|* 31 | HASH JOIN | | 80219 | 9714K| | 4021 (1)| 00:00:49 |
| 32 | TABLE ACCESS FULL | UNITDEFINITION | 365 | 9490 | | 5 (0)| 00:00:01 |
|* 33 | HASH JOIN | | 100K| 9612K| 4072K| 4016 (1)| 00:00:49 |
| 34 | VIEW | index$_join$_011 | 71824 | 3226K| | 377 (1)| 00:00:05 |
|* 35 | HASH JOIN | | | | | | |
| 36 | INDEX FAST FULL SCAN | WTPARTMASTER$COMPOSITE3 | 71824 | 3226K| | 59 (0)| 00:00:01 |
| 37 | INDEX FAST FULL SCAN | WTPARTMASTER$COMPOSITE | 71824 | 3226K| | 28 (0)| 00:00:01 |
|* 38 | HASH JOIN | | 100K| 5100K| 3048K| 3137 (1)| 00:00:38 |
| 39 | INDEX FULL SCAN | UNITVALUE$COMPOSITE0 | 100K| 1863K| | 72 (0)| 00:00:01 |
| 40 | TABLE ACCESS BY INDEX ROWID | WTPART | 82231 | 2650K| | 2741 (1)| 00:00:33 |
|* 41 | INDEX SKIP SCAN | WTPART$COMPOSITE14 | 82231 | | | 52 (0)| 00:00:01 |
|* 42 | HASH JOIN | | 82231 | 9716K| | 3973 (1)| 00:00:48 |
| 43 | TABLE ACCESS FULL | BOOLEANDEFINITION | 31 | 775 | | 4 (0)| 00:00:01 |
|* 44 | HASH JOIN | | 82231 | 7709K| 4072K| 3969 (1)| 00:00:48 |
| 45 | VIEW | index$_join$_032 | 71824 | 3226K| | 377 (1)| 00:00:05 |
|* 46 | HASH JOIN | | | | | | |
| 47 | INDEX FAST FULL SCAN | WTPARTMASTER$COMPOSITE3 | 71824 | 3226K| | 59 (0)| 00:00:01 |
| 48 | INDEX FAST FULL SCAN | WTPARTMASTER$COMPOSITE | 71824 | 3226K| | 28 (0)| 00:00:01 |
|* 49 | HASH JOIN | | 82231 | 4015K| 3616K| 3153 (1)| 00:00:38 |
| 50 | TABLE ACCESS BY INDEX ROWID | WTPART | 82231 | 2650K| | 2741 (1)| 00:00:33 |
|* 51 | INDEX SKIP SCAN | WTPART$COMPOSITE14 | 82231 | | | 52 (0)| 00:00:01 |
| 52 | INDEX FULL SCAN | BOOLEANVALUE$COMPOSITE0 | 139K| 2315K| | 44 (0)| 00:00:01 |
| 53 | NESTED LOOPS | | 749 | 1078K| | 155 (1)| 00:00:02 |
| 54 | NESTED LOOPS | | 749 | 1078K| | 155 (1)| 00:00:02 |
| 55 | VIEW | VW_JF_SET$368F68B3 | 749 | 1045K| | 81 (2)| 00:00:01 |
| 56 | UNION-ALL | | | | | | |
| 57 | NESTED LOOPS | | 745 | 55130 | | 78 (2)| 00:00:01 |
| 58 | NESTED LOOPS | | 745 | 55130 | | 78 (2)| 00:00:01 |
| 59 | MERGE JOIN | | 745 | 30545 | | 3 (34)| 00:00:01 |
| 60 | TABLE ACCESS BY INDEX ROWID| FLOATDEFINITION | 41 | 984 | | 1 (0)| 00:00:01 |
| 61 | INDEX FULL SCAN | PK_FLOATDEFINITION | 41 | | | 1 (0)| 00:00:01 |
|* 62 | SORT JOIN | | 756 | 12852 | | 2 (50)| 00:00:01 |
| 63 | INDEX FULL SCAN | FLOATVALUE$COMPOSITE0 | 756 | 12852 | | 1 (0)| 00:00:01 |
|* 64 | INDEX UNIQUE SCAN | PK_WTPART | 1 | | | 1 (0)| 00:00:01 |
|* 65 | TABLE ACCESS BY INDEX ROWID | WTPART | 1 | 33 | | 1 (0)| 00:00:01 |
| 66 | NESTED LOOPS | | 4 | 328 | | 3 (0)| 00:00:01 |
| 67 | NESTED LOOPS | | 4 | 328 | | 3 (0)| 00:00:01 |
| 68 | NESTED LOOPS | | 4 | 196 | | 2 (0)| 00:00:01 |
| 69 | INDEX FULL SCAN | INTEGERVALUE$COMPOSITE0 | 4 | 68 | | 1 (0)| 00:00:01 |
| 70 | TABLE ACCESS BY INDEX ROWID| INTEGERDEFINITION | 1 | 32 | | 1 (0)| 00:00:01 |
|* 71 | INDEX UNIQUE SCAN | PK_INTEGERDEFINITION | 1 | | | 1 (0)| 00:00:01 |
|* 72 | INDEX UNIQUE SCAN | PK_WTPART | 1 | | | 1 (0)| 00:00:01 |
|* 73 | TABLE ACCESS BY INDEX ROWID | WTPART | 1 | 33 | | 1 (0)| 00:00:01 |
|* 74 | INDEX UNIQUE SCAN | PK_WTPARTMASTER | 1 | | | 1 (0)| 00:00:01 |
| 75 | TABLE ACCESS BY INDEX ROWID | WTPARTMASTER | 1 | 46 | | 1 (0)| 00:00:01 |
|* 76 | INDEX UNIQUE SCAN | PK_WTPARTMASTER | 1 | 7 | | 1 (0)| 00:00:01 |
| 77 | TABLE ACCESS BY INDEX ROWID | WTPART | 1 | 19 | | 1 (0)| 00:00:01 |
|* 78 | INDEX UNIQUE SCAN | PK_WTPART | 1 | | | 1 (0)| 00:00:01 |
| 79 | TABLE ACCESS BY INDEX ROWID | WTUSER | 1 | 23 | | 1 (0)| 00:00:01 |
|* 80 | INDEX UNIQUE SCAN | PK_WTUSER | 1 | | | 1 (0)| 00:00:01 |
|* 81 | INDEX UNIQUE SCAN | PK_WTUSER | 1 | | | 1 (0)| 00:00:01 |
| 82 | TABLE ACCESS BY INDEX ROWID | WTUSER | 1 | 23 | | 1 (0)| 00:00:01 |
| 83 | SORT AGGREGATE | | 1 | 17 | | | |
| 84 | NESTED LOOPS | | 4 | 68 | | 2 (0)| 00:00:01 |
|* 85 | INDEX UNIQUE SCAN | PK_WTPARTMASTER | 1 | 7 | | 1 (0)| 00:00:01 |
| 86 | FIRST ROW | | 4 | 40 | | 1 (0)| 00:00:01 |
|* 87 | INDEX RANGE SCAN (MIN/MAX) | WTPART$UNIQUE50 | 4 | 40 | | 1 (0)| 00:00:01 |
--------------------------------------------------------------------------------------------------------------------------------
Predicate Information (identified by operation id):
---------------------------------------------------
2 - filter("A1"."LAST_REVISION"= (SELECT MAX("P3"."VERSIONIDA2VERSIONINFO") FROM "WC"."WTPARTMASTER"
"PM3","WC"."WTPART" "P3" WHERE "P3"."IDA3MASTERREFERENCE"=:B1 AND "PM3"."IDA2A2"=:B2))
8 - access("P"."IDA2A2"="A1"."PARTVERSION_ID")
12 - filter("SD"."DISPLAYNAME"='Part Classification')
13 - filter(CAST("SV"."VALUE2" AS VARCHAR2(1500))='ABBclass040356' OR CAST("SV"."VALUE2" AS
VARCHAR2(1500))='ABBclass040354' OR CAST("SV"."VALUE2" AS VARCHAR2(1500))='ABBclass040357' OR CAST("SV"."VALUE2" AS
VARCHAR2(1500))='ABBclass040358' OR CAST("SV"."VALUE2" AS VARCHAR2(1500))='ABBclass040359' OR CAST("SV"."VALUE2" AS
VARCHAR2(1500))='ABBclass040361' OR CAST("SV"."VALUE2" AS VARCHAR2(1500))='ABBclass040355' OR CAST("SV"."VALUE2" AS
VARCHAR2(1500))='ABBclass040367' OR CAST("SV"."VALUE2" AS VARCHAR2(1500))='ABBclass040363' OR CAST("SV"."VALUE2" AS
VARCHAR2(1500))='ABBclass040365' OR CAST("SV"."VALUE2" AS VARCHAR2(1500))='ABBclass040366' OR CAST("SV"."VALUE2" AS
VARCHAR2(1500))='ABBclass040360' OR CAST("SV"."VALUE2" AS VARCHAR2(1500))='ABBclass040362' OR CAST("SV"."VALUE2" AS
VARCHAR2(1500))='ABBclass040364')
14 - access("SV"."IDA3A6"="SD"."IDA2A2")
15 - filter("P"."LATESTITERATIONINFO"=1)
16 - access("SV"."IDA3A4"="P"."IDA2A2")
17 - access("P"."IDA3MASTERREFERENCE"="PM"."IDA2A2")
20 - access("SV"."IDA3A6"="SD"."IDA2A2")
22 - access("SV"."IDA3A4"="P"."IDA2A2")
23 - access("P"."IDA3MASTERREFERENCE"="PM"."IDA2A2")
25 - access("P"."LATESTITERATIONINFO"=1)
filter("P"."LATESTITERATIONINFO"=1)
27 - access(ROWID=ROWID)
31 - access("UV"."IDA3A6"="UD"."IDA2A2")
33 - access("P"."IDA3MASTERREFERENCE"="PM"."IDA2A2")
35 - access(ROWID=ROWID)
38 - access("UV"."IDA3A4"="P"."IDA2A2")
41 - access("P"."LATESTITERATIONINFO"=1)
filter("P"."LATESTITERATIONINFO"=1)
42 - access("BV"."IDA3A6"="BD"."IDA2A2")
44 - access("P"."IDA3MASTERREFERENCE"="PM"."IDA2A2")
46 - access(ROWID=ROWID)
49 - access("BV"."IDA3A4"="P"."IDA2A2")
51 - access("P"."LATESTITERATIONINFO"=1)
filter("P"."LATESTITERATIONINFO"=1)
62 - access("FV"."IDA3A6"="FD"."IDA2A2")
filter("FV"."IDA3A6"="FD"."IDA2A2")
64 - access("FV"."IDA3A4"="P"."IDA2A2")
65 - filter("P"."LATESTITERATIONINFO"=1)
71 - access("IV"."IDA3A6"="ID"."IDA2A2")
72 - access("IV"."IDA3A4"="P"."IDA2A2")
73 - filter("P"."LATESTITERATIONINFO"=1)
74 - access("ITEM_1"="PM"."IDA2A2")
76 - access("A1"."PART_ID"="PM1"."IDA2A2")
78 - access("A1"."PARTVERSION_ID"="P2"."IDA2A2")
80 - access("P2"."IDA3D2ITERATIONINFO"="U"."IDA2A2")
81 - access("P2"."IDA3B2ITERATIONINFO"="U2"."IDA2A2")
85 - access("PM3"."IDA2A2"=:B1)
87 - access("P3"."IDA3MASTERREFERENCE"=:B1)