React PropTypes：数字范围 [英] React PropTypes: range of numbers

问题描述

如果数字在某个范围内，是否有更好的方法来验证？

Is there a better way to validate if a number is inside a range?

避免写

PropTypes.oneOf(1, 2, 3, 4, 5, 6, 7, 8, 9, 10) 

推荐答案

根据文档，您可以定义customProps

According to the documentation, you can define your customProps

customProp: function(props, propName, componentName) {
    if (!/matchme/.test(props[propName])) {
      return new Error(
        'Invalid prop `' + propName + '` supplied to' +
        ' `' + componentName + '`. Validation failed.'
      );
    }
  }

因此，对于您的情况，您可以尝试以下

So for your case you can try the following

function withinTen(props, propName, componentName) {
  componentName = comopnentName || 'ANONYMOUS';

  if (props[propName]) {
    let value = props[propName];
    if (typeof value === 'number') {
        return (value >= 1 && value <= 10) ? null : new Error(propName + ' in ' + componentName + " is not within 1 to 10");
    }
  }

  // assume all ok
  return null;
}


something.propTypes = {
  number: withinTen,
  content: React.PropTypes.node.isRequired
}

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