STARTINCLUDE Animation Problem Displaying a window and animating its contents. Solution begin scheme ;;; Jumping PacMan (define PAUSE 0.002) ; determines the speed ...
STARTINCLUDE Adding an Element to a Hash Problem You need to add an entry to a Hash. Solution Simply assign the element to the hash using hash-table-put! . begin ...
STARTINCLUDE Creating a Hash with Immutable Keys or Values Problem You would like to have a hash table whose values or keys couldn't be modified once set. Solution ...
STARTINCLUDE Testing for the Presence of a Key in a Hash Problem You need to know wheter a hash has a particular key, regardless of whatever value may be associated ...
STARTINCLUDE Printing a Hash Problem You want to print a hash (keys and values). Solution Using recipe HashRecipeTraverse we can easily print all the elements in ...
STARTINCLUDE Deleting from a Hash Problem Remove an entry (key value) from a hash table. Solution hash-table-remove! removes the value mapping for the given key if ...
STARTINCLUDE Traversing a Hash Problem You want to perform an action on each entry in a hash. Solution As with lists, see chapter ListChapter, there are two basic ...
Index Pages Select List The following is a list of index pages, used to select a new recipe's parent in the NewRecipe form. STARTINCLUDE NoParentSelected IdiomRecipes ...
Recipes without proper parents Recipes which were created via the NewRecipe form without a parent being selected are listed below. SEARCH{"NoParentSelected"} Main ...
Planned Topic Classifications Most recipes have now been classified via the CookbookForm. The results of this can be seen on the RecipeIndex page. Some of the topics ...
STARTINCLUDE Validating a Credit Card Number Problem You want to to preliminary validation of a credit card number, such as for detecting typographical errors in ...
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