Скачать или смотреть Colour, Procedure, List, Dictionary and Variable Blocks in MIT App Inventor!

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Variable blocks in MIT App Inventor are used to create, store, and retrieve data, acting as named containers for values like numbers, text, or lists. The five main types of variable blocks are initialize global name to, get, set, initialize local name to - in (do), and initialize local name to - in (return). Global variables are accessible throughout the app, while local variables are confined to a specific procedure or event.
In MIT App Inventor, Dictionary blocks are used to store and organize data in key-value pairs, allowing you to associate a label (the key) with a specific piece of information (the value). You can create dictionaries, add or retrieve values using their keys, and even handle complex data structures with nested dictionaries and JSON objects.
In MIT App Inventor, "color blocks" are programming blocks that allow you to select and define colors for components in your app, using either a pre-defined palette or RGB (Red, Green, Blue) values. You can use them to set background colors, text colors, or the color of drawings on a canvas, for example.
Procedure blocks in MIT App Inventor are reusable segments of code that group together a sequence of actions to perform a specific task. They function like functions in other programming languages, allowing you to avoid code duplication by calling the same procedure multiple times from different parts of your app, making your code more organized, readable, and easier to manage.
MIT App Inventor's List blocks allow you to create, manipulate, and manage sequences of data. Key blocks include "make a list" to create lists, "select list item" and "replace list item" for accessing and modifying specific items, "add items to list" and "insert list item" for adding elements, and "remove list item" for deletion. You can also find "length of list" to get the total number of items, and "is in list" to check for an item's presence.
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