52 lines
1.3 KiB
TypeScript
52 lines
1.3 KiB
TypeScript
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import get from './get';
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function internalSet<Entity = any, Output = Entity, Value = any>(
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entity: Entity,
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paths: (string | number)[],
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value: Value,
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removeIfUndefined: boolean,
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): Output {
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if (!paths.length) {
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return value as unknown as Output;
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}
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const [path, ...restPath] = paths;
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let clone: Output;
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if (!entity && typeof path === 'number') {
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clone = [] as unknown as Output;
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} else if (Array.isArray(entity)) {
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clone = [...entity] as unknown as Output;
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} else {
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clone = { ...entity } as unknown as Output;
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}
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// Delete prop if `removeIfUndefined` and value is undefined
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if (removeIfUndefined && value === undefined && restPath.length === 1) {
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delete clone[path][restPath[0]];
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} else {
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clone[path] = internalSet(clone[path], restPath, value, removeIfUndefined);
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}
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return clone;
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}
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export default function set<Entity = any, Output = Entity, Value = any>(
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entity: Entity,
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paths: (string | number)[],
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value: Value,
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removeIfUndefined = false,
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): Output {
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// Do nothing if `removeIfUndefined` and parent object not exist
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if (
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paths.length &&
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removeIfUndefined &&
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value === undefined &&
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!get(entity, paths.slice(0, -1))
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) {
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return entity as unknown as Output;
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}
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return internalSet(entity, paths, value, removeIfUndefined);
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}
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