Array.prototype.filter() 期望在函数 array-callback-return 结束时返回一个值

Question

• I am trying handle below code and its showing enter image description here

 const toArray = props => (props && props.split ? props.split(',') : props || []).map(item => item.trim()); const hasField = (entity, fields) => { if (!fields.length) { return false; } for (let i = 0; i < fields.length; i + 1) { if (entity && entity.includes(fields[i])) { return true; } } return false; }; module.exports = (entities, query) => { const industries = toArray(query.industries); const technologies = toArray(query.technologies); const maturity = toArray(query.maturity); return entities.filter(function (entity) { const hasTecnology = hasField(entity.industries, industries); const hasIndustury = hasField(entity.technologies, technologies); const hasMaturity = hasField(entity.maturity, maturity); const condition = hasTecnology || hasIndustury || hasMaturity; if (condition) return entity; }, []); };

• output showing:

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23:26 error Array.prototype.filter() expects a value to be returned at the end of function
array-callback-return

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• Line 23:26 is ==> module.exports = (entities, query) => {
• Could you please check this? What I wrongly doing here?

Answer 1

It's just as the error says - you're not always returning a value.

The callback return value only needs to be truthy or falsey. Change

if (condition) return entity;

to

return condition;