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Make argument type more specific for isOfType

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This commit is contained in:
Bjorn Stromberg 2020-06-15 13:29:44 +09:00
parent 9c7de4f5af
commit 7e8eeb96c2
1 changed files with 4 additions and 2 deletions
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6
source/index.ts
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@ -93,10 +93,12 @@ function isPrimitiveTypeName(name: unknown): name is PrimitiveTypeName {
export type TypeName = ObjectTypeName | PrimitiveTypeName;
const {toString} = Object.prototype;
// eslint-disable-next-line @typescript-eslint/ban-types
const isOfType = <T extends Function | Primitive>(type: string) => (value: unknown): value is T => typeof value === type;
function isOfType<T extends Primitive | Function>(type: PrimitiveTypeName | 'function') {
return (value: unknown): value is T => typeof value === type;
}
const {toString} = Object.prototype;
const getObjectType = (value: unknown): ObjectTypeName | undefined => {
const objectName = toString.call(value).slice(8, -1);
if (objectName) {