Question

这是我的JavaScript数组

["200.00 K","200.50 K","300.00 K" ,"300.50 K","400.00 K","400.50 K"]

解析这个数组后，我需要得到这样的

 ["200 K","200.5 K","300 K" ,"300.5 K","400 K","400.5 K"]

我正在使用原型
请帮帮我？

Answer 1

myArray = myArray.map(function (item) {
    var n = parseFloat(item);
    return n + " K";
});

~~对于旧浏览器，read this~~ 实际上，我认为原型会自动为您完成此操作。

Answer 2

适用于所有浏览器的其他答案的变体是，

var a = ["200.00 K","200.50 K","300.00 K" ,"300.50 K","400.00 K","400.50 K"];
var b = [];
for (var i = 0; i < a.length; i++)
  b.push(parseFloat(a[i]) + " K");

其中b是结果数组。

Answer 3

var a = ["200.00 K","200.50 K","300.00 K","300.50 K","400.00 K","400.50 K"];
for (var i = 0; i < a.length; i++) {
  a[i] = a[i].replace(/(?:(\.\d*[1-9])|\.)0+ /, "$1 ");
}

之后，a

200 K,200.5 K,300 K,300.5 K,400 K,400.5 K

Answer 4

像这样的东西

for(i=0;i<arrayName.length();i++){
  arrayName[i]=parseFloat(arrayName[i])+ " K";
}

在javascript中修改字符串数组

4 个答案: