Validators directory

You can set your schemas in files contained into src/app/validators.

Create custom rules

If you want to create a custom rule, you can create a file named rules.ts into src/app/validators.

Then, begin to implement your rules!

import type { Rule } from "@fehujs/validator"

export const customRule = (str: string) => {
    return {
        name: "Custom rule name",
        errMsg: "Custom rule error message",
        cb: () => {
            if (/** your condition */) return true

            return false
        }
    } as Rule
}

Now you can easily use this rule in your schemas:

    // ...
    "customRule": [],
    // ...

Info

The first argument of the function is provided by the module, so in the schema declaration you MUST NOT set it as a rule param. But the next arguments MUST be set into the schema declaration.

Here's an example:

export const myCustomMin = (str: string, min: number, foo: string) => {
    return {
        name: "Custom minimum string length",
        errMsg: "The string isn't long enough (custom rule)",
        cb: () => {
            console.log(foo)

            if (str.length >= min) return true

            return false
        }
    } as Rule
}

As you can see, we added a parameter named min and another named foo. In the schema, the declaration would look like this:

    // ...
    "myCustomMin": [
        8, // min param
        "bar" // foo param
    ],
    // ...

Note

Please note that the params are handled in the order of declaration, do not put the foo param before the min param.