我们如何access/manipulate 与byebug 保留关键字冲突的变量名?
How do we access/manipulate variable names which conflicts with byebug reserved keywords?
我们如何访问那些与byebug
保留名称冲突的变量名称?
(byebug) var local
h = {"hierarchyId"=>"59f0b029e4b037ef11a055f7", "level"=>2, ...
self = <div class="index_as_table"></div>
(byebug)
我想访问变量 "h"
但输入 h
会显示 "help dialog box for byebug"
(byebug) h
break -- Sets breakpoints in the source code
catch -- Handles exception catchpoints
condition -- Sets conditions on breakpoints
continue -- Runs until program ends, hits a breakpoint or reaches a line
debug -- Spawns a subdebugger
delete -- Deletes breakpoints
disable -- Disables breakpoints or displays
display -- Evaluates expressions every time the debugger stops
down -- Moves to a lower frame in the stack trace
edit -- Edits source files
enable -- Enables breakpoints or displays
finish -- Runs the program until frame returns
frame -- Moves to a frame in the call stack
help -- Helps you using byebug
history -- Shows byebug's history of commands
info -- Shows several informations about the program being debugged
interrupt -- Interrupts the program
irb -- Starts an IRB session
kill -- Sends a signal to the current process
list -- Lists lines of source code
method -- Shows methods of an object, class or module
next -- Runs one or more lines of code
pry -- Starts a Pry session
quit -- Exits byebug
restart -- Restarts the debugged program
save -- Saves current byebug session to a file
set -- Modifies byebug settings
show -- Shows byebug settings
source -- Restores a previously saved byebug session
step -- Steps into blocks or methods one or more times
thread -- Commands to manipulate threads
tracevar -- Enables tracing of a global variable
undisplay -- Stops displaying all or some expressions when program stops
untracevar -- Stops tracing a global variable
up -- Moves to a higher frame in the stack trace
var -- Shows variables and its values
where -- Displays the backtrace
(byebug)
有什么方法可以访问与这些保留关键字名称冲突的变量。像 python 的 pdb 中的感叹号前缀? (!h
不适用于 byebug)
您可以使用:
eval h
Byebug 指南:https://github.com/deivid-rodriguez/byebug/blob/master/GUIDE.md
您可以将其括在括号中:
[1, 4] in /Users/max/test.rb
1: require 'byebug'
2:
3: byebug
=> 4: false
(byebug) (h = 1)
1
(byebug) (h)
1
(byebug)
我们如何访问那些与byebug
保留名称冲突的变量名称?
(byebug) var local
h = {"hierarchyId"=>"59f0b029e4b037ef11a055f7", "level"=>2, ...
self = <div class="index_as_table"></div>
(byebug)
我想访问变量 "h"
但输入 h
会显示 "help dialog box for byebug"
(byebug) h
break -- Sets breakpoints in the source code
catch -- Handles exception catchpoints
condition -- Sets conditions on breakpoints
continue -- Runs until program ends, hits a breakpoint or reaches a line
debug -- Spawns a subdebugger
delete -- Deletes breakpoints
disable -- Disables breakpoints or displays
display -- Evaluates expressions every time the debugger stops
down -- Moves to a lower frame in the stack trace
edit -- Edits source files
enable -- Enables breakpoints or displays
finish -- Runs the program until frame returns
frame -- Moves to a frame in the call stack
help -- Helps you using byebug
history -- Shows byebug's history of commands
info -- Shows several informations about the program being debugged
interrupt -- Interrupts the program
irb -- Starts an IRB session
kill -- Sends a signal to the current process
list -- Lists lines of source code
method -- Shows methods of an object, class or module
next -- Runs one or more lines of code
pry -- Starts a Pry session
quit -- Exits byebug
restart -- Restarts the debugged program
save -- Saves current byebug session to a file
set -- Modifies byebug settings
show -- Shows byebug settings
source -- Restores a previously saved byebug session
step -- Steps into blocks or methods one or more times
thread -- Commands to manipulate threads
tracevar -- Enables tracing of a global variable
undisplay -- Stops displaying all or some expressions when program stops
untracevar -- Stops tracing a global variable
up -- Moves to a higher frame in the stack trace
var -- Shows variables and its values
where -- Displays the backtrace
(byebug)
有什么方法可以访问与这些保留关键字名称冲突的变量。像 python 的 pdb 中的感叹号前缀? (!h
不适用于 byebug)
您可以使用:
eval h
Byebug 指南:https://github.com/deivid-rodriguez/byebug/blob/master/GUIDE.md
您可以将其括在括号中:
[1, 4] in /Users/max/test.rb
1: require 'byebug'
2:
3: byebug
=> 4: false
(byebug) (h = 1)
1
(byebug) (h)
1
(byebug)