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Last change
on this file was a762898, checked in by istevanoska <ilinastevanoska@…>, 5 months ago |
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File size:
462 bytes
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| 1 | 'use strict';
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| 2 |
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| 3 | var isProduction = process.env.NODE_ENV === 'production';
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| 4 | var prefix = 'Invariant failed';
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| 5 | function invariant(condition, message) {
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| 6 | if (condition) {
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| 7 | return;
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| 8 | }
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| 9 | if (isProduction) {
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| 10 | throw new Error(prefix);
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| 11 | }
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| 12 | var provided = typeof message === 'function' ? message() : message;
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| 13 | var value = provided ? "".concat(prefix, ": ").concat(provided) : prefix;
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| 14 | throw new Error(value);
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| 15 | }
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| 16 |
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| 17 | module.exports = invariant;
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