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28 lines
595 B
JavaScript
28 lines
595 B
JavaScript
"use strict";
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const isCallable = require("is-callable");
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function createDefaultReturner(defaultValue, isLiteral) {
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let defaultFunction = function defaultTo(value) {
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if (value == null) {
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if (isLiteral === false && isCallable(defaultValue)) {
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return defaultValue();
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} else {
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return defaultValue;
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}
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}
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};
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defaultFunction.callIfNull = true;
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return defaultFunction;
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}
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module.exports = function (defaultValue) {
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return createDefaultReturner(defaultValue, false);
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};
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module.exports.literal = function (defaultValue) {
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return createDefaultReturner(defaultValue, true);
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}
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