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In Sketchware Pro, variables are containers used to store data temporarily. Think of them as labeled boxes where you can put different types of information, such as numbers, text, or objects.

Types of Variables

String​

This type of variable is used to store text or sequences of characters, such as words, phrases, or sentences. For example, you might use a string variable to store a user's name or a message to display in your app.

Number​

Number variables are used to store numerical values, including integers (whole numbers) and decimals (floating-point numbers). You might use number variables to represent quantities, scores, or measurements in your app.

Boolean​

Boolean variables can only have two possible values: true or false. They're often used to represent conditions or states, such as whether a button is clicked or if a condition is met in your app's logic.

Map​

Map variables store key-value pairs, where each key is associated with a value. They're useful for storing structured data, like settings, user preferences, or any data that requires a relational structure.

set Boolean to ​

Sets a boolean's value. Can be either true or false.

set Number to ()​

Sets a number variable's value. Can be any integer.

Number increase 1​

Adds 1 to the value of a number variable.

Number decrease 1​

Removes/Decreases the value of a Number variable by 1.

set String to []​

Used to give a value to a string variable, can be any string.

Map create new map​

Used to initialize a map variable.

Map put key [] value []​

Used to assign a value of a string to a key of a map. If the key doesn't already exist, it is automatically created.

Map put key [] value int ()​

Used to assign a value of a number or a integer to a key of a map. If the key doesn't already exist, it is automatically created.

Map put key [] value double ()​

Used to assign a value of a double to a key of a map. A double is basically just a number but with decimal points, such as 0.69, 29.48 etc. If the key doesn't already exist, it is automatically created.

Map put key [] value ​

Used to assign a boolean value to a key of a map. Usually true or false.

Map put key [] value Map​

Used to assign a value of another map into a key of a map variable.

Map put key [] value List String​

Used to assign a value of a list string to a key of a map variable.

Map put key [] value List Map​

Used to assign a value of a list map to a key of a map variable.

Map get key []​

Reads the value of a key containing a string value from a map variable.

Map get number key []​

Reads the value of a key containing a number value from a map variable.

Map get boolean key []​

Reads the value of a key containing a boolean value from a map variable.

Map get Map key​

Reads the value of a key containing a value of another map from a map variable.

Map get List String key []​

Reads the value of a key containing a value of list string from a map variable.

Map get List Map key []​

Reads the value of a key containing a value of another list map from a map variable.

Map is empty​

Returns a boolean value of either true or false. Used to identify if a map has a value or not.

Map contain key []​

Used to check if a map contains a specific key. Returns a boolean value.

Map contain value []​

Used to check if a map contains a specific value at any point. Returns a boolean value.

Map size​

Used to check the length of a map. For example, if a map variable has 3 keys, this will return a number, 3.

Map remove key []​

Used to remove a key from a map variable.

Map clear​

Clears the data of a map. Removes every key/value pair from it.

Map get all keys to List String​

Used to automatically set the value of every key of a map into a list string variable.

Bottom line​

That was the explanation of every built-in Variable block in Sketchware Pro. If you think some info is wrong or doesn't exist, please let us know in our discord server or simply open a Pull Request in our website's GitHub repository.