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blockly >FieldTextInput >doClassValidation_
FieldTextInput.doClassValidation_() 方法
确保输入值会转换为有效字符串。
Signature:
protected doClassValidation_(newValue?: any): string | null;
参数
参数 |
类型 |
说明 |
newValue |
任意 |
(可选)输入值。 |
返回:
字符串 |null
有效字符串,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 `FieldTextInput` class, validates input values to ensure they can be cast to a string. It accepts an optional `newValue` of any type as input. The method returns either a valid string if the input is acceptable or `null` if the input is invalid. This method ensures the input is a usable string.\n"]]