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blockly > FieldNumber > doClassValidation_
FieldNumber.doClassValidation_() method
Ensure that the input value is a valid number (must fulfill the constraints placed on the field).
Signature:
protected doClassValidation_(newValue?: any): number | null;
Parameters
| Parameter |
Type |
Description |
| newValue |
any |
(Optional) The input value. |
Returns:
number | null
A valid number, or null if invalid.
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Last updated 2024-09-18 UTC.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2024-09-18 UTC."],[[["`FieldNumber.doClassValidation_()` is a protected method used to validate the input value for a number field in Blockly."],["It ensures the input adheres to any constraints placed on the field, such as minimum or maximum values."],["If the input is valid, the method returns the validated number; otherwise, it returns null."]]],["The `doClassValidation_` method, part of the `FieldNumber` class, validates an input value to ensure it's a valid number. It accepts an optional `newValue` of any type as input. The method's core action is to check if the input fulfills the field's constraints. It returns a valid number if the input is valid; otherwise, it returns `null`, indicating the input is invalid.\n"]]
