javascript - What goes wrong if 77>602? -


what goes wrong if 77>602? tried in ie, firefox , chrome

function getmaxvalue(data){     var maxvalue=0;     for(var i=0;i<data.length;i++){          if(data[i].value>maxvalue){              console.log(data[i].value +">"+maxvalue);              maxvalue=data[i].value;          }      } console.log("maxvalue:"+maxvalue); return maxvalue;   }

i data json:

[{ "keyword": "user: allen-p", "value": "602" }, { "keyword": "from: phillip.allen@enron.com", "value": "598" }, { "keyword": "date: 2001", "value": "276" }, { "keyword": "subject: re:", "value": "228" }, { "keyword": "date: 2001 apr", "value": "77" }, ]

needed add useless description stackoverflow. please me;). json file bit bigger , example.

strings compared alphabetically if contain numbers. character '7' comes after character '6', alphabetically, indeed, in terms of strings, "77" > "602".

the solution convert them numbers first:

    if(parsefloat(data[i].value) > maxvalue){

or sake of brevity, unary + operator this:

    if(+data[i].value > maxvalue){

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