• var aa = ["12", "34", "", "423", " "];
  •  
    console.log($.grep(aa, function(n) {return $.trim(n).length > 0;}))
  •  
    var aaa = aa.filter(s => $.trim(s).length > 0);
  •  
    console.log(aaa);
  •  
     
  •  
    结果:["12", "34", "423"]
  •  
    ["12", "34", "423"]

 

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