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25 lines
480 B
TypeScript
25 lines
480 B
TypeScript
export const setIdx = <T>(arr: T[], index: number, newValue: T): T[] => {
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const newArr = [...arr];
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newArr[index] = newValue;
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return newArr;
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};
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export const push = <T>(arr: T[], newValue: T) => [...arr, newValue];
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export const deleteIdx = <T>(arr: T[], index: number): T[] => {
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const newArr = [...arr];
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newArr.splice(index, 1);
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return newArr;
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};
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export const setProp = <T, K extends keyof T>(
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obj: T,
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key: K,
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newValue: T[K],
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): T => ({
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...obj,
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[key]: newValue,
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});
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