11种JavaScript生成1到100的数组的方式

var arr = new Array(100);

for(var i=0;i<arr1.length;i++){

  arr1[i] = i;

}

var arr = new Array();

for(var i=0;i<100;i++){

  arr.push(i);

}

var arr = new Array();

var i = 0;

while(i<100){

  arr.push(i);

  i++;

}

var arr = new Array();

var i = 0;

do{

  arr.push(i);

  i++;

}

while(i<100)

var arr = Object.keys(Array.apply(null, {length:100})).map(function(item){

  return +item;

});

var arr = Array.from({length:100}, (v,k) => k);

var arr = Array.from(Array(100), (v,k) =>k);

var arr = new Array(100).keys();

var arr = [];

var i = 0;

var timer = setInterval(function(){

  arr[i] = ++i;

  if(i>=100){

    clearInterval(timer);

  }

},1);

var arr = [];

var i = 0;

function MakeArray(num){

  if(i<num){

    arr[i] = i++;

    MakeArray(num);

  }

  return arr;

}

var arr = new Array(100).toString().split(',').map(function(item,index){

  return index;

});