javascript - Internet Explorer 11 : Object doesn't support property or method 'isInteger' -

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i have error in internet explorer console ' object doesn't support property or method 'isinteger' ' how can resolve ?

code:

    function verificanota(nota){      if (nota.length>0){          var arr = [];          if( nota.indexof(".") != -1 ){              return ferificarearraynote(nota.split('.'));          }else if( nota.indexof(",") != -1 ){              ferificarearraynote(nota.split(','));          }else if( nota.length<=2 && number.isinteger(number(nota)) && number(nota)<=10 && number(nota) > 0){              return true;          }else {              return false;          }      }      return true;     }

and yes, pass number not char;

as stated @andreas, number.isnumber part of es6 not supported ie11

you can add following polyfill javasript

number.isinteger = number.isinteger || function(value) {     return typeof value === "number" &&             isfinite(value) &&             math.floor(value) === value; };

source: https://developer.mozilla.org/en-us/docs/web/javascript/reference/global_objects/number/isinteger


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