If you’ve been assigned to modify legacy code, which statement would make you happiest if true?- 未答复
A. “It was originally developed using Agile techniques"
B. “It is well covered by tests”
C. “It’s nicely structured and easy to read”
D. “Many of the original design documents are available”
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Some of the AJAX interactions in Ben Bitdiddle's AJAX-intensive SaaS app "feel sluggish". The likeliest cause is:Slow JavaScript interpreter (for example, users with very old browsers/computers) Slow database queries associated with AJAX actions Network delays due to sending too much data to browser in AJAX responses Can't tell without further information
A. Slow JavaScript interpreter (for example, users with very old browsers/computers)
B. Slow database queries associated with AJAX actions
C. Network delays due to sending too much data to browser in AJAX responses
D. Can't tell without further information
If this form is loaded in a non-JS-aware browser:- 未答复
A. Browser will complain about malformed HTML when page is loaded (server should respect browser version and not send JavaScript)
Browser will complain, but only when form's Submit button clicked
C. The form will be submitted, but without inputs being checked
D. Nothing will happen when submit button is clicked (form won't be submitted)
When using JavaScript for client-side form validation, which is NOT true?
A. JavaScript code can inspect DOM element attributes to see what the user typed
B. JavaScript code can prevent the "Submit" button from submitting the form
C. Some validations may be impractical to perform on client so must be done on server
D. The server doesn't have to repeat validations already performed by JavaScript
Suppose we want to add a Theater model to Rotten Potatoes, with the assumption that a Theater is associated with one Movie, but a given Movie could be showing at many Theaters. In our Rails app we would like to be able to write movie.theaters to obtain a list of all the theaters at which a movie is showing. Which statement is correct?- 未答复
A. The movies table will need a foreign key theater_id. We must add has_many :theaters to the Movie model. We must add has_many :movies to the Theater model. We must add belongs_to :theater to the Movie model.
B. We must add has_many :theaters to the Movie model.
C. We must add has_many :movies to the Theater model.
D. We must add belongs_to :theater to the Movie model.
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