root / HServer / 00.Server / 00.Program / node_modules / safe-json-stringify / index.js
이력 | 보기 | 이력해설 | 다운로드 (1.2 KB)
| 1 | 39 | HKM | var hasProp = Object.prototype.hasOwnProperty;
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| 2 | |||
| 3 | function throwsMessage(err) { |
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| 4 | return '[Throws: ' + (err ? err.message : '?') + ']'; |
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| 5 | } |
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| 6 | |||
| 7 | function safeGetValueFromPropertyOnObject(obj, property) { |
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| 8 | if (hasProp.call(obj, property)) {
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| 9 | try {
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| 10 | return obj[property];
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| 11 | } |
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| 12 | catch (err) {
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| 13 | return throwsMessage(err);
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| 14 | } |
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| 15 | } |
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| 16 | |||
| 17 | return obj[property];
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| 18 | } |
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| 19 | |||
| 20 | function ensureProperties(obj) { |
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| 21 | var seen = [ ]; // store references to objects we have seen before |
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| 22 | |||
| 23 | function visit(obj) { |
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| 24 | if (obj === null || typeof obj !== 'object') { |
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| 25 | return obj;
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| 26 | } |
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| 27 | |||
| 28 | if (seen.indexOf(obj) !== -1) { |
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| 29 | return '[Circular]'; |
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| 30 | } |
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| 31 | seen.push(obj); |
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| 32 | |||
| 33 | if (typeof obj.toJSON === 'function') { |
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| 34 | try {
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| 35 | return visit(obj.toJSON());
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| 36 | } catch(err) {
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| 37 | return throwsMessage(err);
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| 38 | } |
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| 39 | } |
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| 40 | |||
| 41 | if (Array.isArray(obj)) {
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| 42 | return obj.map(visit);
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| 43 | } |
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| 44 | |||
| 45 | return Object.keys(obj).reduce(function(result, prop) { |
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| 46 | // prevent faulty defined getter properties
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| 47 | result[prop] = visit(safeGetValueFromPropertyOnObject(obj, prop)); |
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| 48 | return result;
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| 49 | }, {});
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| 50 | }; |
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| 51 | |||
| 52 | return visit(obj);
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| 53 | } |
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| 54 | |||
| 55 | module.exports = function(data, replacer, space) { |
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| 56 | return JSON.stringify(ensureProperties(data), replacer, space);
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| 57 | } |
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| 58 | |||
| 59 | module.exports.ensureProperties = ensureProperties; |