NativeScript/nativescript-core/utils/number-utils.ts

const epsilon = 1E-05;

export function areClose(value1: number, value2: number): boolean {
    return (Math.abs(value1 - value2) < epsilon);
}

export function greaterThanOrClose(value1: number, value2: number): boolean {
    return (value1 > value2) || areClose(value1, value2);
}

export function greaterThan(value1: number, value2: number): boolean {
    return (value1 > value2) && !areClose(value1, value2);
}

export function lessThan(value1: number, value2: number): boolean {
    return (value1 < value2) && !areClose(value1, value2);
}

export function isZero(value: number): boolean {
    return (Math.abs(value) < epsilon);
}

export function greaterThanZero(value: Object): boolean {
    return (<number>value) > 0;
}

export function notNegative(value: Object): boolean {
    return (<number>value) >= 0;
}

export const radiansToDegrees = (a: number) => a * (180 / Math.PI);

export const degreesToRadians = (a: number) => a * (Math.PI / 180);