@reactodia/workspace/src/data/utils.ts

Reactodia Workspace -- library for visual interaction with graphs in a form of a diagram.

/** Generates random 32-digit hexadecimal string. */
export function generate128BitID() {
    function random32BitDigits() {
        return Math.floor((1 + Math.random()) * 0x100000000)
            .toString(16).substring(1);
    }
    // generate by half because of restricted numerical precision
    return random32BitDigits() + random32BitDigits() + random32BitDigits() + random32BitDigits();
}

export function makeCaseInsensitiveFilter(token: string): (item: string) => boolean {
    const filter = new RegExp(escapeRegexp(token), 'i');
    return item => filter.test(item);
}

function escapeRegexp(token: string): string {
    return token.replace(/[\\^$.*+?()[\]{}|]/g, '\\$&');
}