tra-analysis/website/functions/node_modules/traverse/examples/stringify.js

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2019-01-06 19:14:45 +00:00
#!/usr/bin/env node
var traverse = require('traverse');
var obj = [ 'five', 6, -3, [ 7, 8, -2, 1 ], { f : 10, g : -13 } ];
var s = '';
traverse(obj).forEach(function to_s (node) {
if (Array.isArray(node)) {
this.before(function () { s += '[' });
this.post(function (child) {
if (!child.isLast) s += ',';
});
this.after(function () { s += ']' });
}
else if (typeof node == 'object') {
this.before(function () { s += '{' });
this.pre(function (x, key) {
to_s(key);
s += ':';
});
this.post(function (child) {
if (!child.isLast) s += ',';
});
this.after(function () { s += '}' });
}
else if (typeof node == 'string') {
s += '"' + node.toString().replace(/"/g, '\\"') + '"';
}
else if (typeof node == 'function') {
s += 'null';
}
else {
s += node.toString();
}
});
console.log('JSON.stringify: ' + JSON.stringify(obj));
console.log('this stringify: ' + s);