@salient-sys/react-native-infinite-picker/dist/module/utils/getInitialScrollIndex.js

A simple, flexible, performant duration picker for React Native apps 🔥 Great for timers, alarms and duration inputs ⏰🕰️⏳ Includes iOS-style haptic and audio feedback 🍏

export const getInitialScrollIndex = variables => {
  const {
    disableInfiniteScroll,
    initialValue,
    numberOfItems,
    padWithNItems,
    pickerItems,
    repeatValuesNTimes
  } = variables;
  let index = 0;
  if (initialValue !== undefined) {
    const indexOfInitialValue = pickerItems.findIndex(item => item.value === initialValue);
    if (indexOfInitialValue !== -1) {
      index = indexOfInitialValue;
    }
  }
  return Math.max(numberOfItems * Math.floor(repeatValuesNTimes / 2) + (index + numberOfItems) % numberOfItems - (!disableInfiniteScroll ? padWithNItems : 0), 0);
};
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