1 | import { useEffect } from 'react';
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2 | import useCommittedRef from './useCommittedRef';
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18 |
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19 | function useInterval(fn, ms, paused, runImmediately) {
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20 | if (paused === void 0) {
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21 | paused = false;
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22 | }
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23 |
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24 | if (runImmediately === void 0) {
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25 | runImmediately = false;
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26 | }
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27 |
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28 | var handle;
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29 | var fnRef = useCommittedRef(fn);
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30 |
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31 |
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32 | var pausedRef = useCommittedRef(paused);
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33 |
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34 | var tick = function tick() {
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35 | if (pausedRef.current) return;
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36 | fnRef.current();
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37 | schedule();
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38 | };
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39 |
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40 | var schedule = function schedule() {
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41 | clearTimeout(handle);
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42 | handle = setTimeout(tick, ms);
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43 | };
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44 |
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45 | useEffect(function () {
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46 | if (runImmediately) {
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47 | tick();
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48 | } else {
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49 | schedule();
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50 | }
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51 |
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52 | return function () {
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53 | return clearTimeout(handle);
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54 | };
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55 | }, [paused, runImmediately]);
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56 | }
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57 |
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58 | export default useInterval; |
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