var data = [

  {name:'Liming',age:'25'},
  {name:'Liming',age:'25'},
  {name:'Liming',age:'25'},
  {name:'Liming',age:'25'},
  {name:'Liming',age:'25'},
  {name:'Liming',age:'25'},
  {name:'Liming',age:'25'},
  {name:'Liming',age:'25'},
  {name:'Liming',age:'25'},
  {name:'Liming',age:'25'},
]
var result = [];
for(var i=0;i<data.length;i+=3){
    result.push(data.slice(i,i+3));
}

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