35 lines
673 B
JavaScript
35 lines
673 B
JavaScript
"use strict";
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Object.defineProperty(exports, "__esModule", {
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value: true
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});
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var react_1 = require("react");
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function useCreation(factory, deps) {
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var current = react_1.useRef({
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deps: deps,
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obj: undefined,
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initialized: false
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}).current;
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if (current.initialized === false || !depsAreSame(current.deps, deps)) {
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current.deps = deps;
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current.obj = factory();
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current.initialized = true;
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}
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return current.obj;
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}
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exports["default"] = useCreation;
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function depsAreSame(oldDeps, deps) {
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if (oldDeps === deps) return true;
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for (var i = 0; i < oldDeps.length; i++) {
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if (oldDeps[i] !== deps[i]) return false;
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}
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return true;
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} |