4 examples of 'node string to json' in JavaScript

49
get json() {
50
  var ports = [];
51
  this.forEachPort(
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    port => ports.push(Port.fromJSON(port, {
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      graph: this.graph,
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      node: this
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    }))
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  );
57
  return {
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    id: this.id,
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    data: this.data,
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    bounds: this.bounds.toArray(),
61
    layer: this.layer,
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    scale: this.scale,
63
    ports
64
  };
65
}

288
function stringify(node) {
289
  const { type } = node;
290
  switch (type) {
291
    case 'BooleanLiteral':
292
    case 'NullLiteral':
293
    case 'NumericLiteral':
294
    case 'StringLiteral':
295
    case 'TemplateLiteral':
296
      return JSON.stringify(literalValue(node));
297
298
    case 'Identifier':
299
      return JSON.stringify(node.name);
300
301
    case 'ArrayExpression':
302
      return `[${node.elements.map(stringify)}]`;
303
304
    case 'ObjectExpression':
305
      return `{${node.properties.map(stringify).filter(Boolean)}}`;
306
307
    case 'ObjectProperty': {
308
      const { key, value } = node;
309
      if (t.isIdentifier(value, { name: 'undefined' })) {
310
        return '';
311
      }
312
      return `${stringify(key)}:${stringify(value)}`;
313
    }
314
  }
315
316
  // istanbul ignore next
317
  throw new Error(`Can't handle type "${type}"`);
318
}

86
function nodeStr(n) {
87
    if (/[\u0000-\u001F\u0080-\uFFFF]/.test(n.value)) {
88
        // use the convoluted algorithm to avoid broken low/high characters
89
        var str = "";
90
        for (var i = 0; i < n.value.length; i++) {
91
            var c = n.value[i];
92
            if (c <= "\x1F" || c >= "\x80") {
93
                var cc = c.charCodeAt(0).toString(16);
94
                while (cc.length < 4) cc = "0" + cc;
95
                str += "\\u" + cc;
96
            } else {
97
                str += nodeStrEscape(c);
98
            }
99
        }
100
        return '"' + str + '"';
101
    }
102
103
    return '"' + nodeStrEscape(n.value) + '"';
104
}

1
function nodeToString(node) {
2
  var str = '';
3
  if (node.nodeType == Node.ELEMENT_NODE) {
4
    str += node.nodeName;
5
    if (node.id)
6
      str += '#' + node.id;
7
    else if (node.class)
8
      str += '.' + node.class;
9
  } else if (node.nodeType == Node.TEXT_NODE) {
10
    str += '\'' + node.data + '\'';
11
  } else if (node.nodeType == Node.DOCUMENT_NODE) {
12
    str += '#document';
13
  }
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  return str;
15
}