commando.html5/node_modules/traverse/examples/stringify.js

38 lines
921 B
JavaScript
Executable File

#!/usr/bin/env node
'use strict';
var traverse = require('traverse');
var obj = ['five', 6, -3, [7, 8, -2, 1], { f: 10, g: -13 }];
var s = '';
traverse(obj).forEach(function toS(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) {
toS(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);