This is a playground to test JavaScript. It runs a completely standard copy of Node.js on a virtual server created just for you. Every one of npm’s 300,000+ packages are pre-installed, so try it out:
const Ajv = require("ajv@6.9.0"); // This version will produce errors
//const Ajv = require("ajv@6.5.0"); // Thiw version is just fine (Wanted result)
// (un)comment lines on top --------------------------------------
const jsonSchemaDraft06 = require("ajv/lib/refs/json-schema-draft-06.json");
const ajv = new Ajv({
allErrors: true,
coerceTypes: 'array',
removeAdditional: 'all',
useDefaults: 'shared',
verbose: true,
});
ajv.addMetaSchema(jsonSchemaDraft06);
ajv.addKeyword('minTrimmedLength', {
compile (length) {
return function (sample) {
return sample.trim().length >= length;
};
},
});
ajv.addSchema({
$id: 'trimmedString',
type: 'string',
minTrimmedLength: 1,
});
// Schema
const schema = {
type: 'object',
properties: {
name: {
oneOf: [
{ $ref: 'trimmedString' },
{ type: 'null' },
],
},
},
required: [ 'name' ],
};
const validate = ajv.compile(schema);
const sample = {
name: 1,
};
validate({
name: null
});
const { errors } = validate;
console.log(errors);
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