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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 | 1x 1x 1x 2x 2x | export const ThresholdUnits = { Pixel: 'Pixel', Percent: 'Percent', }; const defaultThreshold = { unit: ThresholdUnits.Percent, value: 0.8, }; export function parseThreshold(scrollThreshold: string | number) { Eif (typeof scrollThreshold === 'number') { return { unit: ThresholdUnits.Percent, value: scrollThreshold * 100, }; } if (typeof scrollThreshold === 'string') { if (scrollThreshold.match(/^(\d*(\.\d+)?)px$/)) { return { unit: ThresholdUnits.Pixel, value: parseFloat(scrollThreshold), }; } if (scrollThreshold.match(/^(\d*(\.\d+)?)%$/)) { return { unit: ThresholdUnits.Percent, value: parseFloat(scrollThreshold), }; } console.warn( 'scrollThreshold format is invalid. Valid formats: "120px", "50%"...' ); return defaultThreshold; } console.warn('scrollThreshold should be string or number'); return defaultThreshold; } |