@td-design/rn-hooks/lib/commonjs/useTrackedEffect/index.js

从ahooks里面抽取的一些在rn项目里可以使用的hooks。提高开发效率

'use strict';

var react = require('react');

function useTrackedEffect(effect, deps) {
    var previousDepsRef = react.useRef();
    react.useEffect(function () {
        var changes = diffTwoDeps(previousDepsRef.current, deps);
        var previousDeps = previousDepsRef.current;
        previousDepsRef.current = deps;
        return effect(changes, previousDeps, deps);
        // eslint-disable-next-line react-hooks/exhaustive-deps
    }, deps);
}
function diffTwoDeps(deps1, deps2) {
    //Let's do a reference equality check on 2 dependency list.
    //If deps1 is defined, we iterate over deps1 and do comparison on each element with equivalent element from deps2
    //As this func is used only in this hook, we assume 2 deps always have same length.
    return deps1
        ? deps1.map(function (_ele, idx) { return (deps1[idx] !== (deps2 === null || deps2 === void 0 ? void 0 : deps2[idx]) ? idx : -1); }).filter(function (ele) { return ele >= 0; })
        : deps2
            ? deps2.map(function (_ele, idx) { return idx; })
            : [];
}

module.exports = useTrackedEffect;