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Make sure you can get an available value from the list
npm install ensure-get-list-val或者
yarn add ensure-get-list-val| 参数 | 说明 | 类型 | 默认值 |
|---|---|---|---|
| items | list data | ItemType[] | undefined |
| value | val | ValueType | undefined |
| getVal | Function to get value | (item: ItemType) => ValueType | item => item |
| pos | The position of the returned value when no data is queried | 'first','last' | 'frist' |
import ensureGetValFromList from 'ensure-get-list-val'
const currentVal = ensureGetValFromList<number>({
items: [1, 2, 3]
})
currentVal // 1import ensureGetValFromList from 'ensure-get-list-val'
interface stringSelectOptinos {
label: string;
value: string;
}
const currentVal = ensureGetValFromList<stringSelectOptinos, string>({
items: ['1', '2', '3'].map(item => ({label: item, value: item})),
value: '4',
getVal: (item) => item.value,
})
currentVal // 1