本文整理汇总了TypeScript中ramda.update函数的典型用法代码示例。如果您正苦于以下问题：TypeScript update函数的具体用法？TypeScript update怎么用？TypeScript update使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。
在下文中一共展示了update函数的4个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的TypeScript代码示例。
示例1: findIndex
.reduceRight((updatedArray, el) => {
/**
* We need to update in place to maintain the correct timeline of events. Update in-place
* by finding the index then updating at that index.
*/
const indexOfFoundEvent = findIndex(({ id }) => id === el.id, updatedArray);
return indexOfFoundEvent > -1
? update(indexOfFoundEvent, el, updatedArray)
: [el, ...updatedArray];
}, prevArr)示例2: append
export default <T extends { id: string | number }>(item: T, items: T[]) => {
if (items.length === 0) {
return [item];
}
const found = items.findIndex((i) => i.id === item.id);
if (found < 0) {
return append(item, items);
};
return update(found, item, items);
}示例3: updateLastPosition
function* updateLastPosition({
payload
}: ActionType<typeof lastPositionsCreator.updateLastPosition>): SagaIterator {
try {
const {lastPositions = []}: LocalStorage = yield call(getLocalStorage)
const index = lastPositions.findIndex(R.propEq('id', payload.id))
if (index >= 0) {
const updatedLastPositions = R.update(index, payload, lastPositions)
yield call(setLocalStorage, {
lastPositions: updatedLastPositions
})
}
} catch (err) {
console.error(err)
}
}示例4: slice
// slice :: Number → Number → [a] → [a] (init / tail / take / takeLast)
slice(fromIndex, toIndex, list) {
return R.slice(fromIndex, toIndex, list)
},
// difference {a∣a∈xs ∩ a∉ys} :: [a] → [a] → [a]
difference(listA, listB) {
return R.difference(listA, listB)
},
// insert :: Number → a → [a] → [a] (append / prepend)
insert(insertIndex, val, list) {
return R.insert(insertIndex, val, list)
},
// update :: Number → a → [a] → [a]
update(index, val, list) {
return R.update(index, val, list)
},
// adjust :: (a → a) → Number → [a] → [a]
adjust(index, fn, list) {
return R.adjust(fn, index, list)
},
// remove :: Number → Number → [a] → [a] (drop / dropLast)
remove(fromIndex, number, list) {
return R.remove(fromIndex, number, list)
},
// without {a∣a∉xs ∩ a∈ys} :: [a] → [a] → [a]
without(listA, listB) {
return R.without(listA, listB)
},
// sum :: [Number] → Number