Option to parse numeric values about react-filter-box HOT 4 CLOSED

Expression is used to represent Syntax Tree Structure only, it does not have any idea about data type. It's up to user to use that expression (if we add datatype then it needs to handle wrong data input, which is not its job). For example with SimpleResultProcessing, it combine options and expression to transform data as below:

var newData = new SimpleResultProcessing(this.options).process(data, expressions);

I think in your case, you just need to write a class to transform Expression to your CustomExpression with passed options. (Expression has columnField, it should be easy to know which field is number)

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Or maybe, an option converter that is a function that can be used to translate the value from what the user typed into another type. I want to use this filter on a remote server, and I need to be able to translate the values before sending them.

const options = [
  {
    columnField: 'SourcePort',
    type: 'text',
    converter: parseInt
  }
];

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I'd be willing to create a PR if you feel it is a worthy feature

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Thanks for the pointer; that works for me 👍 I wanted to avoid having to transform the expressions, but it makes sense that the syntax tree shouldn't care about datatypes

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