Try to only keep 'serivce' to deal with Immutable data, controller should have no knowledge about whether the data in mutable type or immutable type. So when return the data to the controller, we sue '.toArray()' method to convert the Immutable data structure to normal Javascript array met...
* This library is free software; you can redistribute it and/or @@ -116,7 +116,7 @@ object CalibrateTask { private def showScatterChart(x: IndexedSeq[IndexedSeq[Double]], y: IndexedSeq[IndexedSeq[Double]], seriesLabels: Array[String], seriesLabels: IndexedSeq[String], chartTitle: Strin...
52. Try to only keep 'serivce' to deal with Immutable data, controller should have no knowledge about whether the data in mutable type or immutable type. So when return the data to the controller, we sue '.toArray()' method to convert the Immutable data structure to normal Javascript arr...
//3.添加一个Set:自动消除重复项: // set1 ++=mutable.Set("语文","思政","体育") // println(set1) } }
These concerns reflect design flaws in JavaScript not NArr. Size Inconsistency and Mutability Concerns. Every scala.Array has an immutable length while any js.Array can grow or shrink dynamically. To mitigate the usual dangers of shared mutable state, users of NArr had better treat all instances ...
Mutable vs Immutable Data Types Shallow Copy Only Community Input Array.from is Another Way to Clone Array Resources # Why Can’t I Use = to Copy an Array?Because arrays in JS are reference values, so when you try to copy it using the = it will only copy the reference to the original...
The "done" property should be set to true only if there is no "value" in the result. Note that "done" only reflects whether the iterator is done at the time "next" is called. Future calls to "next" may or may not return more rows for a mutable data source. In order for JET ...
Here,originalArrayis the array that you want to deep copy. To use Java Streams for deep copying arrays, we need to consider whether the array elements are mutable or immutable. For arrays of immutable objects, the process is straightforward. For mutable objects, we may need to provide a cus...
In the code above, we create an immutable array namedarrcontaining integer values (1, 2, 3, 4, 5). Then, initialize a mutable variable'i'to0, and'i'will be used to keep track of the current index we are accessing in the array. ...
// 添加新的key-valuemutableMap["gender"]="male"// remove 移除某个key-valuemutableMap.remove("age")for((key,value)inmutableMap){println("$key:$value")}// 枚举所有键或值// mutableMap.values & mutableMap.keysfor(valueinmutableMap.values){println("the value in mutableMap is$value")}}...