react-stable-ref
Version:
An assortment of utilities for testing against unstable references in React
42 lines • 1.67 kB
JavaScript
;
var __assign = (this && this.__assign) || function () {
__assign = Object.assign || function(t) {
for (var s, i = 1, n = arguments.length; i < n; i++) {
s = arguments[i];
for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p))
t[p] = s[p];
}
return t;
};
return __assign.apply(this, arguments);
};
Object.defineProperty(exports, "__esModule", { value: true });
var react_1 = require("react");
var useWhichDepChanged = function (dependencies, onChange) {
if (process.env.NODE_ENV === 'production') {
console.warn('useStableRefTester is only intended for development purposes only. Please remove from production bundles.');
}
var previousDeps = react_1.useRef();
react_1.useEffect(function () {
if (previousDeps.current) {
var allKeys = Object.keys(__assign(__assign({}, previousDeps.current), dependencies));
var changedDeps_1 = {};
allKeys.forEach(function (key) {
if (previousDeps.current[key] !== dependencies[key]) {
changedDeps_1[key] = {
from: previousDeps.current[key],
to: dependencies[key],
};
}
});
if (Object.keys(changedDeps_1).length) {
onChange
? onChange(changedDeps_1)
: console.log('[useWhichDepChanged]', changedDeps_1);
}
}
previousDeps.current = dependencies;
});
};
exports.default = useWhichDepChanged;
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