找不到任何能为控制台提供良好语法高亮显示的解决方案，所以这里是我的2p

安装并添加cli高亮显示依赖项

npm install cli-highlight --save

全局定义logjson

const highlight = require('cli-highlight').highlight
console.logjson = (obj) => console.log(
                               highlight( JSON.stringify(obj, null, 4), 
                                          { language: 'json', ignoreIllegals: true } ));

Use

console.logjson({foo: "bar", someArray: ["string1", "string2"]});

它工作得很好：

console.table()

在此处阅读更多信息：https://developer.mozilla.org/pt-BR/docs/Web/API/Console/table

Douglas Crockford的JavaScript库中的JSON将通过stringify方法打印JSON。

您可能还发现这个老问题的答案很有用：如何在（unix）shell脚本中漂亮地打印JSON？

这是user123444555621的很棒的HTML，适合终端。易于调试节点脚本：

function prettyJ(json) {
  if (typeof json !== 'string') {
    json = JSON.stringify(json, undefined, 2);
  }
  return json.replace(/("(\\u[a-zA-Z0-9]{4}|\\[^u]|[^\\"])*"(\s*:)?|\b(true|false|null)\b|-?\d+(?:\.\d*)?(?:[eE][+\-]?\d+)?)/g, 
    function (match) {
      let cls = "\x1b[36m";
      if (/^"/.test(match)) {
        if (/:$/.test(match)) {
          cls = "\x1b[34m";
        } else {
          cls = "\x1b[32m";
        }
      } else if (/true|false/.test(match)) {
        cls = "\x1b[35m"; 
      } else if (/null/.test(match)) {
        cls = "\x1b[31m";
      }
      return cls + match + "\x1b[0m";
    }
  );
}

用法：

// thing = any json OR string of json
prettyJ(thing);

更好的方法。

用Javascript美化JSON数组

JSON.stringify(jsonobj,null,'\t')

对Ruby的其他漂亮打印机不满意，我自己编写了（NeatJSON），然后将其移植到JavaScript，包括一个免费的在线格式化程序。该代码在MIT许可证下是免费的（相当宽松）。

功能（全部可选）：

设置线宽并换行，使对象和数组在合适时保持在同一行上，否则每行换行一个值。如果愿意，对对象关键点排序。对齐对象关键点（对齐冒号）。将浮点数格式化为特定的小数位数，而不打乱整数。“短”换行模式将左括号和右括号/大括号与值放在同一行，提供一些人更喜欢的格式。对数组和对象的间距、括号之间、冒号和逗号之前/之后进行精细控制。函数可用于web浏览器和Node.js。

我将在这里复制源代码，这样这不仅仅是一个库的链接，但我鼓励您转到GitHub项目页面，因为它将保持最新，而下面的代码不会。

(function(exports){
exports.neatJSON = neatJSON;

function neatJSON(value,opts){
  opts = opts || {}
  if (!('wrap'          in opts)) opts.wrap = 80;
  if (opts.wrap==true) opts.wrap = -1;
  if (!('indent'        in opts)) opts.indent = '  ';
  if (!('arrayPadding'  in opts)) opts.arrayPadding  = ('padding' in opts) ? opts.padding : 0;
  if (!('objectPadding' in opts)) opts.objectPadding = ('padding' in opts) ? opts.padding : 0;
  if (!('afterComma'    in opts)) opts.afterComma    = ('aroundComma' in opts) ? opts.aroundComma : 0;
  if (!('beforeComma'   in opts)) opts.beforeComma   = ('aroundComma' in opts) ? opts.aroundComma : 0;
  if (!('afterColon'    in opts)) opts.afterColon    = ('aroundColon' in opts) ? opts.aroundColon : 0;
  if (!('beforeColon'   in opts)) opts.beforeColon   = ('aroundColon' in opts) ? opts.aroundColon : 0;

  var apad  = repeat(' ',opts.arrayPadding),
      opad  = repeat(' ',opts.objectPadding),
      comma = repeat(' ',opts.beforeComma)+','+repeat(' ',opts.afterComma),
      colon = repeat(' ',opts.beforeColon)+':'+repeat(' ',opts.afterColon);

  return build(value,'');

  function build(o,indent){
    if (o===null || o===undefined) return indent+'null';
    else{
      switch(o.constructor){
        case Number:
          var isFloat = (o === +o && o !== (o|0));
          return indent + ((isFloat && ('decimals' in opts)) ? o.toFixed(opts.decimals) : (o+''));

        case Array:
          var pieces  = o.map(function(v){ return build(v,'') });
          var oneLine = indent+'['+apad+pieces.join(comma)+apad+']';
          if (opts.wrap===false || oneLine.length<=opts.wrap) return oneLine;
          if (opts.short){
            var indent2 = indent+' '+apad;
            pieces = o.map(function(v){ return build(v,indent2) });
            pieces[0] = pieces[0].replace(indent2,indent+'['+apad);
            pieces[pieces.length-1] = pieces[pieces.length-1]+apad+']';
            return pieces.join(',\n');
          }else{
            var indent2 = indent+opts.indent;
            return indent+'[\n'+o.map(function(v){ return build(v,indent2) }).join(',\n')+'\n'+indent+']';
          }

        case Object:
          var keyvals=[],i=0;
          for (var k in o) keyvals[i++] = [JSON.stringify(k), build(o[k],'')];
          if (opts.sorted) keyvals = keyvals.sort(function(kv1,kv2){ kv1=kv1[0]; kv2=kv2[0]; return kv1<kv2?-1:kv1>kv2?1:0 });
          keyvals = keyvals.map(function(kv){ return kv.join(colon) }).join(comma);
          var oneLine = indent+"{"+opad+keyvals+opad+"}";
          if (opts.wrap===false || oneLine.length<opts.wrap) return oneLine;
          if (opts.short){
            var keyvals=[],i=0;
            for (var k in o) keyvals[i++] = [indent+' '+opad+JSON.stringify(k),o[k]];
            if (opts.sorted) keyvals = keyvals.sort(function(kv1,kv2){ kv1=kv1[0]; kv2=kv2[0]; return kv1<kv2?-1:kv1>kv2?1:0 });
            keyvals[0][0] = keyvals[0][0].replace(indent+' ',indent+'{');
            if (opts.aligned){
              var longest = 0;
              for (var i=keyvals.length;i--;) if (keyvals[i][0].length>longest) longest = keyvals[i][0].length;
              var padding = repeat(' ',longest);
              for (var i=keyvals.length;i--;) keyvals[i][0] = padRight(padding,keyvals[i][0]);
            }
            for (var i=keyvals.length;i--;){
              var k=keyvals[i][0], v=keyvals[i][1];
              var indent2 = repeat(' ',(k+colon).length);
              var oneLine = k+colon+build(v,'');
              keyvals[i] = (opts.wrap===false || oneLine.length<=opts.wrap || !v || typeof v!="object") ? oneLine : (k+colon+build(v,indent2).replace(/^\s+/,''));
            }
            return keyvals.join(',\n') + opad + '}';
          }else{
            var keyvals=[],i=0;
            for (var k in o) keyvals[i++] = [indent+opts.indent+JSON.stringify(k),o[k]];
            if (opts.sorted) keyvals = keyvals.sort(function(kv1,kv2){ kv1=kv1[0]; kv2=kv2[0]; return kv1<kv2?-1:kv1>kv2?1:0 });
            if (opts.aligned){
              var longest = 0;
              for (var i=keyvals.length;i--;) if (keyvals[i][0].length>longest) longest = keyvals[i][0].length;
              var padding = repeat(' ',longest);
              for (var i=keyvals.length;i--;) keyvals[i][0] = padRight(padding,keyvals[i][0]);
            }
            var indent2 = indent+opts.indent;
            for (var i=keyvals.length;i--;){
              var k=keyvals[i][0], v=keyvals[i][1];
              var oneLine = k+colon+build(v,'');
              keyvals[i] = (opts.wrap===false || oneLine.length<=opts.wrap || !v || typeof v!="object") ? oneLine : (k+colon+build(v,indent2).replace(/^\s+/,''));
            }
            return indent+'{\n'+keyvals.join(',\n')+'\n'+indent+'}'
          }

        default:
          return indent+JSON.stringify(o);
      }
    }
  }

  function repeat(str,times){ // http://stackoverflow.com/a/17800645/405017
    var result = '';
    while(true){
      if (times & 1) result += str;
      times >>= 1;
      if (times) str += str;
      else break;
    }
    return result;
  }
  function padRight(pad, str){
    return (str + pad).substring(0, pad.length);
  }
}
neatJSON.version = "0.5";

})(typeof exports === 'undefined' ? this : exports);