ethereumjs-monorepo

@ethereumjs/util

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@ethereumjs/util / getKeys

Function: getKeys()

getKeys(params, key, allowEmpty?): string[]

Defined in: packages/util/src/internal.ts:151

Collect string values for key from each object in params.

Parameters

params

Record<string, string>[]

key

string

allowEmpty?

boolean

When true, missing values become empty strings instead of throwing

Returns

string[]

Example

getKeys([{a: '1', b: '2'}, {a: '3', b: '4'}], 'a') => ['1', '3']

Throws

If params is not an array or a selected value is not a string