[Linq] groupby vs tolookup

簡單紀錄一下

主要差異在tolookup會馬上執行, groupby 會有延遲執行的特性

ref : https://stackoverflow.com/questions/43661143/use-selectmany-and-groupby

[Resharper] short cut

基本快捷鍵紀錄

• ReSharper Shortcuts (at least you should know)
• Quick Action: Alt+Enter
• Refactor This... : Ctrl+Shift+R
• Extract Method: Ctrl+R, M
• Rename: Ctrl+R, R
• Introduce Variable: Ctrl+R, V
• Introduce Field: Ctrl+R, F
• Introduce Parameter: Ctrl+R, P
• Inline variable/field/parameter/method/class: Ctrl+R, I
• Move file/folder/namespace/another type/instance method: Ctrl+R, O
• List File Members: Alt+\
• Search Everything: Ctrl+T
• Extend Selection: Ctrl+W, Ctrl+W
• Shrink Selection: Ctrl+Shift+W, Ctrl+Shift+W
• Go to Previous Function: Alt+Up Arrow
• Go to Next Function: Alt+Down Arrow
• Go to Previous error/highlight/issue: Alt+PageUp
• Go to Next error/highlight/issue: Alt+PageDown
• Run All Test: Ctrl+U, L
• Run Last Test: Ctrl+U,U
• Reformat Code: Ctrl+Alt+Enter
• Clean Up: Ctrl+E, Ctrl+C
• Duplicate Code(selection/line/block): Ctrl+D
• Insert New Line:Shift+Enter
• Insert Surround Template: Ctrl+E,U
• Build Solution: Ctrl+Shift+B
• Start without Debug: Ctrl+F5
• Backward Navigate: Ctrl+-