code: function parseAnimationValue(value) {
    value = value.toString();
  
    if (value === 'initial') {
      value = 0;
    } else if (/ms$/.test(value)) {
      value = parseFloat(value);
    } else {
      value = parseFloat(value) * 1000;
    }
  
    return value;
  }
docs: /* istanbul ignore next