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Direktori : /var/www/html/node_modules/fast-json-stable-stringify/ |
Current File : //var/www/html/node_modules/fast-json-stable-stringify/index.js |
'use strict'; module.exports = function (data, opts) { if (!opts) opts = {}; if (typeof opts === 'function') opts = { cmp: opts }; var cycles = (typeof opts.cycles === 'boolean') ? opts.cycles : false; var cmp = opts.cmp && (function (f) { return function (node) { return function (a, b) { var aobj = { key: a, value: node[a] }; var bobj = { key: b, value: node[b] }; return f(aobj, bobj); }; }; })(opts.cmp); var seen = []; return (function stringify (node) { if (node && node.toJSON && typeof node.toJSON === 'function') { node = node.toJSON(); } if (node === undefined) return; if (typeof node == 'number') return isFinite(node) ? '' + node : 'null'; if (typeof node !== 'object') return JSON.stringify(node); var i, out; if (Array.isArray(node)) { out = '['; for (i = 0; i < node.length; i++) { if (i) out += ','; out += stringify(node[i]) || 'null'; } return out + ']'; } if (node === null) return 'null'; if (seen.indexOf(node) !== -1) { if (cycles) return JSON.stringify('__cycle__'); throw new TypeError('Converting circular structure to JSON'); } var seenIndex = seen.push(node) - 1; var keys = Object.keys(node).sort(cmp && cmp(node)); out = ''; for (i = 0; i < keys.length; i++) { var key = keys[i]; var value = stringify(node[key]); if (!value) continue; if (out) out += ','; out += JSON.stringify(key) + ':' + value; } seen.splice(seenIndex, 1); return '{' + out + '}'; })(data); };