pry-rails

问题 Suppose we have pry installed, open the rails console, and run times = [1, 5, 10, 30, 72].sample(1)[0] nums = *(1..72) num_sample = nums.sample(times) Evaluation stops after line 2 (since the output of the second line runs off screen and hence the console opens the output): How can we get the console to not stop executing, but rather display the entirety of the output of one line before executing the next, that is, to execute all lines of code it receives? Is there any way to achieve this

问题 Suppose we have pry installed, open the rails console, and run times = [1, 5, 10, 30, 72].sample(1)[0] nums = *(1..72) num_sample = nums.sample(times) Evaluation stops after line 2 (since the output of the second line runs off screen and hence the console opens the output): How can we get the console to not stop executing, but rather display the entirety of the output of one line before executing the next, that is, to execute all lines of code it receives? Is there any way to achieve this

问题 byebug doesn't seem to be able to handle multiple lines of code. Example I put byebug into the controller, and the next lines of code are (these could be anything, just an example here): payment_intent = Stripe::PaymentIntent.create({ payment_method_types: ['card'], amount: @amount_minor_unit, currency: @currency, application_fee_amount: 123, # STODO transfer_data: { destination: @star.stripe_account, }, }) But it does this: If the code is edited so it's on one single line, it succeeds:

问题 byebug doesn't seem to be able to handle multiple lines of code. Example I put byebug into the controller, and the next lines of code are (these could be anything, just an example here): payment_intent = Stripe::PaymentIntent.create({ payment_method_types: ['card'], amount: @amount_minor_unit, currency: @currency, application_fee_amount: 123, # STODO transfer_data: { destination: @star.stripe_account, }, }) But it does this: If the code is edited so it's on one single line, it succeeds:

问题 I recently discovered that ls in pry can take an argument like so: ls -l . My initial question is what the -l part actually is - it is clearly not a string or symbol, and there is no local variable or method l defined, so is there something else going on behind the scenes? As an extension to my question, is ls just a "normal" Ruby method defined by pry, or does it behave slightly differently? I also noted that you get a different output if you pass a string ( ls 'l' ) or symbol ( ls :l ). Is

问题 When I put the following line into ~/.pryrc it doesn't work as expected: Pry.config.prompt_name = Time.now.to_s Every prompt is equal to the time that Pry was launched. How do I update the prompt with the current timestamp, each time the prompt is displayed (after each call)? 回答1: You need to use prompt not prompt_name Pry.config.prompt = Proc.new { |output, value| Time.now.to_s[0..-6] } 来源： https://stackoverflow.com/questions/22084481/how-can-i-set-my-pry-prompt-to-be-the-current-timestamp