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function assertAlmostEquals

Make an assertion that actual and expected are almost equal numbers through a given tolerance. It can be used to take into account IEEE-754 double-precision floating-point representation limitations. If the values are not almost equal then throw.

Examples

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Example 1

import { assertAlmostEquals, assertThrows } from "https://deno.land/std@$STD_VERSION/assert/mod.ts";

assertAlmostEquals(0.1, 0.2);

// Using a custom tolerance value
assertAlmostEquals(0.1 + 0.2, 0.3, 1e-16);
assertThrows(() => assertAlmostEquals(0.1 + 0.2, 0.3, 1e-17));

Parameters

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actual: number
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expected: number
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tolerance
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msg: string