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approximatelyEqual

TS JS Deno

Checks if two numbers are approximately equal to each other.

Use Math.abs() to compare the absolute difference of the two values to epsilon. Omit the third parameter, epsilon, to use a default value of 0.001.

typescript
export const approximatelyEqual = (
  v1: number,
  v2: number,
  epsilon: number = 0.001
) => Math.abs(v1 - v2) < epsilon;
typescript
approximatelyEqual(Math.PI / 2.0, 1.5708); // true
approximatelyEqual(Math.PI / 2.0, 1.5708, 0.000001); // false // 1.5707963267948966