locomotive-boilerplate/_assets/styles/settings/_config.speeds.scss

// ==========================================================================
// Settings / Config / Speeds
// ==========================================================================

// Speeds
// ==========================================================================

$speeds: (
    fastest:    0.1s,
    faster:     0.15s,
    fast:       0.25s,
    normal:     0.3s,
    slow:       0.5s,
    slower:     0.75s,
    slowest:    1s,
);

// Function
// ==========================================================================

// Returns timing.
//
// ```scss
// .c-box {
//     transition-duration: speed(slow);
// }
// ```
//
// @param  {string} $key - The speed key in $speeds.
// @return {duration}

@function speed($key: "normal") {
    @if not map-has-key($speeds, $key) {
        @error "Unknown '#{$key}' in $speeds.";
    }

    @return map-get($speeds, $key);
}