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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,18 @@ | ||
| // Copyright 2023-latest Tomoki Miyauchi. All rights reserved. MIT license. | ||
| // This module is browser compatible. | ||
|
|
||
| import { isPositiveNumber } from "./is_positive_number.ts"; | ||
|
|
||
| /** Whether the input is positive integer or not. | ||
| * @param input - Any `number`. | ||
| * @example | ||
| * ```ts | ||
| * import { isPositiveInteger } from "https://deno.land/x/isx@$VERSION/number/is_positive_integer.ts"; | ||
| * import { assertEquals } from "https://deno.land/std/testing/asserts.ts"; | ||
| * assertEquals(isPositiveInteger(1), true); | ||
| * assertEquals(isPositiveInteger(0), false); | ||
| * ``` | ||
| */ | ||
| export function isPositiveInteger(input: number): boolean { | ||
| return Number.isInteger(input) && isPositiveNumber(input); | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,35 @@ | ||
| import { isPositiveInteger } from "./is_positive_integer.ts"; | ||
| import { assert, assertFalse, describe, it } from "../_dev_deps.ts"; | ||
|
|
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| describe("isPositiveInteger", () => { | ||
| it("should return true", () => { | ||
| const table: number[] = [ | ||
| 1, | ||
| Number.MAX_VALUE, | ||
| Number.MAX_SAFE_INTEGER, | ||
| ]; | ||
|
|
||
| table.forEach((input) => { | ||
| assert(isPositiveInteger(input)); | ||
| }); | ||
| }); | ||
|
|
||
| it("should return false", () => { | ||
| const table: number[] = [ | ||
| NaN, | ||
| 0, | ||
| -0, | ||
| -1, | ||
| -1.1, | ||
| -Infinity, | ||
| Infinity, | ||
| 1.1, | ||
| Number.NEGATIVE_INFINITY, | ||
| Number.MIN_SAFE_INTEGER, | ||
| ]; | ||
|
|
||
| table.forEach((input) => { | ||
| assertFalse(isPositiveInteger(input)); | ||
| }); | ||
| }); | ||
| }); |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,16 @@ | ||
| // Copyright 2023-latest Tomoki Miyauchi. All rights reserved. MIT license. | ||
| // This module is browser compatible. | ||
|
|
||
| /** Whether the input is negative number or not. | ||
| * @param input - Any numeric. | ||
| * @example | ||
| * ```ts | ||
| * import { isNegativeNumber } from "https://deno.land/x/isx@$VERSION/numeric/is_negative_number.ts" | ||
| * import { assert, assertFalse } from "https://deno.land/std/testing/asserts.ts" | ||
| * assert(isNegativeNumber(-1)) | ||
| * assertFalse(isNegativeNumber(0)) | ||
| * ``` | ||
| */ | ||
| export function isNegativeNumber(input: number | bigint): boolean { | ||
| return input < 0; | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,38 @@ | ||
| import { isNegativeNumber } from "./is_negative_number.ts"; | ||
| import { assert, assertFalse, describe, it } from "../_dev_deps.ts"; | ||
|
|
||
| describe("isNegativeNumber", () => { | ||
| it("should return true", () => { | ||
| const table: (number | bigint)[] = [ | ||
| -1, | ||
| -0.1, | ||
| -Infinity, | ||
| Number.NEGATIVE_INFINITY, | ||
| Number.MIN_SAFE_INTEGER, | ||
| -1n, | ||
| ]; | ||
|
|
||
| table.forEach((input) => { | ||
| assert(isNegativeNumber(input)); | ||
| }); | ||
| }); | ||
|
|
||
| it("should return false", () => { | ||
| const table: (number | bigint)[] = [ | ||
| NaN, | ||
| 0, | ||
| -0, | ||
| Infinity, | ||
| 0.1, | ||
| 1, | ||
| Number.MAX_VALUE, | ||
| Number.MAX_SAFE_INTEGER, | ||
| 0n, | ||
| 1n, | ||
| ]; | ||
|
|
||
| table.forEach((input) => { | ||
| assertFalse(isNegativeNumber(input)); | ||
| }); | ||
| }); | ||
| }); |
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