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blockly >FieldNumber >doClassValidation_
FieldNumber.doClassValidation_() 方法
确保输入的值是有效数字(必须满足字段上的限制条件)。
Signature:
protected doClassValidation_(newValue?: any): number | null;
参数
参数 |
类型 |
说明 |
newValue |
任意 |
(可选)输入值。 |
返回:
数字 |null
有效数字,如果无效则为 null。
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最后更新时间 (UTC):2025-07-25。
[[["易于理解","easyToUnderstand","thumb-up"],["解决了我的问题","solvedMyProblem","thumb-up"],["其他","otherUp","thumb-up"]],[["没有我需要的信息","missingTheInformationINeed","thumb-down"],["太复杂/步骤太多","tooComplicatedTooManySteps","thumb-down"],["内容需要更新","outOfDate","thumb-down"],["翻译问题","translationIssue","thumb-down"],["示例/代码问题","samplesCodeIssue","thumb-down"],["其他","otherDown","thumb-down"]],["最后更新时间 (UTC):2025-07-25。"],[],["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"]]