在javascript中将数字数组转换为字符串（）答案

【问题标题】：Converting a number array toString() in javascript在javascript中将数字数组转换为字符串（）
【发布时间】：2015-12-21 22:53:52
【问题描述】：

请不要因为我提出一个“愚蠢”的问题而责骂我，但我已经为此苦苦挣扎了好几个星期！

为什么即使在我使用 toString() 将值转换为字符串之后，该数组仍保留我的前导零并将 numbers 转换为不同的格式？

var coords=new Array();
coords[0]=new Array(03336890,"SPOON RIVER NEAR ST. JOSEPH, IL");
coords[1]=new Array(03346500,"EMBARRAS RIVER AT LAWRENCEVILLE, IL");
coords[2]=new Array(03612600,"OHIO RIVER AT OLMSTED");
coords[3]=new Array(05543010,"ILLINOIS RIVER AT SENECA, IL");
coords[4]=new Array(05554300,"INDIAN CREEK NEAR FAIRBURY, IL");
coords[5]=new Array(05576100,"LICK CREEK NEAR WOODSIDE, IL");
coords[6]=new Array(05576195,"SUGAR CREEK NEAR CHATHAM, IL");
coords[7]=new Array(05586300,"ILLINOIS RIVER AT FLORENCE, IL");
coords[8]=new Array(05599490,"BIG MUDDY RIVER AT RTE 127 AT MURPHYSBORO, IL");
coords[9]=new Array(411955088280601,"HANSON GRAVEL PIT AT CULVERT NEAR MORRIS, IL");

for (i=0;i<coords.length;i++){
    coords[i][0].toString();
}

在jsfiddle查看结果

【问题讨论】：

标签： javascript arrays numbers tostring

【解决方案1】：

在引号中设置数字而不是数字。

var coords=new Array();
coords[0]=new Array("03336890","SPOON RIVER NEAR ST. JOSEPH, IL");
coords[1]=new Array("03346500","EMBARRAS RIVER AT LAWRENCEVILLE, IL");
...

【讨论】：

这太容易了太难了！感谢您指出显而易见的！我真的需要它！
赞赏。谢谢。

【解决方案2】：

这里的问题是您将值保存为数字。 javascript 会自动将它们保存在内部而不带前导零，因此它们甚至在您调用 .toString() 之前就丢失了。我用给定的示例为您提供了一种解决方法，女巫使用了一个小技巧来给您返回前导零。当然，如果需要，这需要一些改进：

var i, x = 100

var coords = new Array();
coords[0] = new Array(03336890, "SPOON RIVER NEAR ST. JOSEPH, IL");
coords[1] = new Array(03346500, "EMBARRAS RIVER AT LAWRENCEVILLE, IL");
coords[2] = new Array(03612600, "OHIO RIVER AT OLMSTED");
coords[3] = new Array(05543010, "ILLINOIS RIVER AT SENECA, IL");
coords[4] = new Array(05554300, "INDIAN CREEK NEAR FAIRBURY, IL");
coords[5] = new Array(05576100, "LICK CREEK NEAR WOODSIDE, IL");
coords[6] = new Array(05576195, "SUGAR CREEK NEAR CHATHAM, IL");
coords[7] = new Array(05586300, "ILLINOIS RIVER AT FLORENCE, IL");
coords[8] = new Array(05599490, "BIG MUDDY RIVER AT RTE 127 AT MURPHYSBORO, IL");
coords[9] = new Array(411955088280601, "HANSON GRAVEL PIT AT CULVERT NEAR MORRIS, IL");

for (i = 0; i < 10; i++) {
  if (x < 10000000) {
    alert("0" + coords[i]);
  }
}

jsfiddle 的链接在这里： https://jsfiddle.net/gyjjqnkt/

【讨论】：

这并不能真正解决数字转换的问题。