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Some RAW formatting fixes
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‎COSQuickRef.md

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@@ -31,28 +31,28 @@ A list of some common ObjectScript expressions
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| Populate a class | `Do ##class(package.class).Populate(count, verbose)` |
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| Remove all objects in process memory | `Kill` |
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| List all objects in process memory | `Do $system.OBJ.ShowObjects()` |
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| Display all properties of an object | `Do $system.OBJ.Dump(object)`<br>`Zwrite object` (v2012.2+) |
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| Determine If variable is an object reference | `If $isobject(variable) ; 1=yes, 0=no` |
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| Find classname of an object | `Write $classname(oref)` |
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| Start the SQL shell | `Do $system.SQL.Shell()` |
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| Test a class query | `Do ##class(%ResultSet).RunQuery(class, query)` |
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| Declare a variable's type for Studio Assist | `#dim object as package.class` |
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| Display all properties of an object | `Do $system.OBJ.Dump(object)`<br>`Zwrite object` (v2012.2+) |
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| Determine If variable is an object reference | `If $isobject(variable) ; 1=yes, 0=no` |
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| Find classname of an object | `Write $classname(oref)` |
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| Start the SQL shell | `Do $system.SQL.Shell()` |
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| Test a class query | `Do ##class(%ResultSet).RunQuery(class, query)` |
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| Declare a variable's type for Studio Assist | `#dim object as package.class` |
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## ObjectScript Commands
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| Command | Description |
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|-------------------------------|-------------------------------------------------------------------------------------|
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| `Write` | Display text strings, value of variable or expression. |
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| `Zwrite` | Display array, list string, bit string.
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| `Set` | Set value of variable. |
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| `Do` | Execute method, procedure, or routine. |
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| `Quit` or `Return` (v2013.1) | Terminate method, procedure, or routine. Optionally return value to calling method. |
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| `Continue` | Stop current loop iteration, and continue looping. |
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| `Halt` | Stop Caché process and close Terminal. |
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| `Kill` | Destroy variable(s). |
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| `If {} ElseIf {} Else {}` | Evaluate conditions and branch. |
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| `For {}`, `While {}`, `Do {} While` | Execute block of code repeatedly. |
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| `Try {} Catch {}`, `Throw` | Handle errors. |
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| `Write` | Display text strings, value of variable or expression |
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| `Zwrite` | Display array, list string, bit string |
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| `Set` | Set value of variable |
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| `Do` | Execute method, procedure, or routine |
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| `Quit` or `Return` (v2013.1) | Terminate method, procedure, or routine. Optionally return value to calling method |
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| `Continue` | Stop current loop iteration, and continue looping |
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| `Halt` | Stop Caché process and close Terminal |
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| `Kill` | Destroy variable(s) |
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| `If {} ElseIf {} Else {}` | Evaluate conditions and branch |
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| `For {}`, `While {}`, `Do {} While` | Execute block of code repeatedly |
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| `Try {} Catch {}`, `Throw` | Handle errors |
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## ObjectScript Date/Time Functions and Special Variables
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@@ -67,28 +67,28 @@ A list of some common ObjectScript expressions
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## ObjectScript Branching Functions
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| Action | Code |
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|--------------------------------------------------|-------------------------------------------------------------|
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| Display result for value of expression | `Write $case(expression, value1:result1, value2:result2, …, :resultN)` |
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| Display result for first true condition | `Write $select(condition1:result1, condition2:result2, …, 1:resultN)` |
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| Action | Code |
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|--------------------------------------------------|------------------------------------------------------------------------|
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| Display result for value of expression | `Write $case(expression, value1:result1, value2:result2, …, :resultN)` |
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| Display result for first true condition | `Write $select(condition1:result1, condition2:result2, …, 1:resultN)` |
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## ObjectScript String Functions
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| Action | Code |
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|--------------------------------------------------|-------------------------------------------------------------|
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| Display substring extracted from string | `Write $extract(string, start, end)` |
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| Display right-justified string within width characters | `Write $justify(string, width)` |
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| Display length of string | `Write $length(string)` |
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| Display number of delimited pieces in string | `Write $length(string, delimiter)` |
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| Display piece from delimited string | `Write $piece(string, delimiter, pieceNumber)` |
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| Set piece into delimited string | `Set $piece(string, delimiter, pieceNumber) = piece` |
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| Display string after replacing substring | `Write $replace(string, subString, replaceString)`|
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| Display reversed string | `Write $reverse(string)` |
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| Display string after replacing characters | `Write $translate(string, searchChars, replaceChars)` |
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| Build a list | `Set listString = $listbuild(list items, separated by comma)` |
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| Retrieve an item from a list | `Set variable = $list(listString, position)` |
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| Put item into list string | `Set $list(listString, position) = substring` |
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| Display the length of a list | `Write $listlength(listString)` |
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| Action | Code |
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|----------------------------------------------------------|---------------------------------------------------------------|
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| Display substring extracted from string | `Write $extract(string, start, end)` |
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| Display right-justified string within width characters | `Write $justify(string, width)` |
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| Display length of string | `Write $length(string)` |
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| Display number of delimited pieces in string | `Write $length(string, delimiter)` |
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| Display piece from delimited string | `Write $piece(string, delimiter, pieceNumber)` |
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| Set piece into delimited string | `Set $piece(string, delimiter, pieceNumber) = piece` |
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| Display string after replacing substring | `Write $replace(string, subString, replaceString)` |
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| Display reversed string | `Write $reverse(string)` |
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| Display string after replacing characters | `Write $translate(string, searchChars, replaceChars)` |
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| Build a list | `Set listString = $listbuild(list items, separated by comma)` |
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| Retrieve an item from a list | `Set variable = $list(listString, position)` |
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| Put item into list string | `Set $list(listString, position) = substring` |
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| Display the length of a list | `Write $listlength(listString)` |
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## ObjectScript Existence Functions
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@@ -103,13 +103,13 @@ A list of some common ObjectScript expressions
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| Action | Code |
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|--------------------------------------------------|-------------------------------------------------------------|
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| Increment ^global by increment | `$increment(^global, increment)` <br> `$sequence(^global, increment)` |
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| Match a regular expression | `Set matches = $match(string, regularexpression)` |
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| Match a regular expression | `Set matches = $match(string, regularexpression)` |
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| Display random integer from start to start+count | `Write $random(count) + start` |
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## ObjectScript Special Variables
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| Action | Code |
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|--------------------------------------------------|-------------------------------------------------------------|
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| Action | Code |
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|-----------------------------------|---------------------------------------|
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| Display process ID | `Write $job` |
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| Display current namespace | `Write $namespace` |
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| Change current namespace | `Set $namespace = newnamespace` |
@@ -118,23 +118,23 @@ A list of some common ObjectScript expressions
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## Utilities
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| Action | Code |
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|--------------------------------------------------|-------------------------------------------------------------|
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| Action | Code |
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|-----------------------------------|---------------------------------------|
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| Change current namespace | `Do ^%CD` <br> `zn "newnamespace"` |
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| Display a ^global | `Do ^%G` <br> `zwrite ^global` |
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## Collections
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| Action | Code |
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|--------------------------------------------------------------|--------------------------------------------------------------------------------------------------------|
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| Create a new standalone list<br>Work with a list property | `Set listObject=##class(%ListOfDataTypes).%New()`<br>Use methods below on a list collection property |
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| Action | Code |
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|--------------------------------------------------------------|------------------------------------------------------------------------------------------------------------|
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| Create a new standalone list<br>Work with a list property | `Set listObject=##class(%ListOfDataTypes).%New()`<br>Use methods below on a list collection property |
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| Insert an element at the end of a list | `Do listObject.Insert(value)`<br>`Do object.listProperty.Insert(value)` |
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| Insert an element into a list | `Do listObject.SetAt(value, position)`<br>`Do object.listProperty.SetAt(value, position)` |
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| Remove an element from a list | `Do listObject.RemoveAt(position)`<br>`Do object.listProperty.RemoveAt(position)` |
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| Display an element of a list | `Write listObject.GetAt(position)`<br>`Write object.listProperty.GetAt(position)` |
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| Display the size of a list | `Write listObject.Count()`<br>`Write object.listProperty.Count()` |
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| Clear all the elements of a list | `Do listObject.Clear()`<br>`Do object.listProperty.Clear()` |
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| Create a new standalone array<br>Work with an array property | `Set arrayObject=##class(%ArrayOfDataTypes).%New()`<br>Use methods below on an array collection property |
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| Create a new standalone array<br>Work with an array property | `Set arrayObject=##class(%ArrayOfDataTypes).%New()`<br>Use methods below on an array collection property |
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| Insert an element into an array | `Do arrayObject.SetAt(value, key)`<br>`Do object.arrayProperty.SetAt(value, key)` |
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| Remove an element from an array | `Do arrayObject.RemoveAt(key)`<br>`Do object.arrayProperty.RemoveAt(key)` |
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| Display an element of an array | `Write arrayObject.GetAt(key)`<br>`Do object.arrayProperty.GetAt(key)` |
@@ -143,16 +143,16 @@ A list of some common ObjectScript expressions
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## Relationships
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| Action | Code |
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|-----------------------------------------|------------------------------------------------------------------------------------------|
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| Action | Code |
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|-----------------------------------------|--------------------------------------------------------------------------------------------------------------|
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| Parent-to-children object linking | `Do parentObject.childRefProperty.Insert(chilDobject)`<br>`Set chilDobject.parentRefProperty = parentObject` |
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| One-to-many object linking | `Do oneObject.manyRefProperty.Insert(manyObject)`<br>`Set manyObject.OneRefProperty = OneObject` |
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| Write a property of a child object | `Write parentObject.childRefProperty.GetAt(position).property` |
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| Write a property of a many object | `Write oneObject.manyRefProperty.GetAt(position).property` |
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| Display the count of child/many objects | `Write parentObject.childRefProperty.Count()`<br>`Write oneObject.manyRefProperty.Count()` |
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| Open a many/child object directly | `Set object = ##class(package.class).IDKEYOpen(parentID, childsub)` |
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| Retrieve the id of a child object | `Set status = ##class(package.class).IDKEYExists(parentID, childsub, .childID)` |
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| Clear the child/many objects | `Do parentObject.childRefProperty.Clear()<br>Do oneObject.manyRefProperty.Clear()` |
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| Write a property of a child object | `Write parentObject.childRefProperty.GetAt(position).property` |
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| Write a property of a many object | `Write oneObject.manyRefProperty.GetAt(position).property` |
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| Display the count of child/many objects | `Write parentObject.childRefProperty.Count()`<br>`Write oneObject.manyRefProperty.Count()` |
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| Open a many/child object directly | `Set object = ##class(package.class).IDKEYOpen(parentID, childsub)` |
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| Retrieve the id of a child object | `Set status = ##class(package.class).IDKEYExists(parentID, childsub, .childID)` |
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| Clear the child/many objects | `Do parentObject.childRefProperty.Clear()<br>Do oneObject.manyRefProperty.Clear()` |
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## Streams
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