Question

我有一个这样的数组：

["[Date.UTC(2016,09,30),250500.00]","[Date.UTC(2016,09,29),255100.83]", "[Date.UTC(2016,09,28),255600.82]"]

如何将其转换为类似的内容？

[[Date.UTC(2016,09,27),256100.83],[Date.UTC(2016,09,25),261091.57],[Date.UTC(2016,09,23),261391.58]]

我在AngularJS中尝试这个。

Answer 1

你去。

它并不漂亮，但它有效，并且它不会使用eval。

＆＃13;

var a = ["[Date.UTC(2016,09,30),250500.00]","[Date.UTC(2016,09,29),255100.83]", "[Date.UTC(2016,09,28),255600.82]"];
var result = a.map(function(element){
    var row = JSON.parse(element.replace('Date.UTC(', '').replace(')', '').replace(/,0/g, ','));
    return [new Date(row[0], row[1], row[2]), row[3]];
});
console.log(result);

＆＃13;

返回数组，日期为JS Date个对象。

Answer 2

试试这个

const inputs = [
  "[Date.UTC(2016,09,30),250500.00]",
  "[Date.UTC(2016,09,29),255100.83]", 
  "[Date.UTC(2016,09,28),255600.82]"
]

const result = inputs.map(item => {
  const trimItem = item
    .replace('[Date.UTC(', '')
    .replace(']', '')
    .replace(')', '')
  
  const trimItems = trimItem.split(',')
  
  const YYYY = trimItems[0]
  const MM = trimItems[1]
  const DD = trimItems[2]
  const result = [
     Date.UTC(YYYY, MM, DD),
     Number(trimItems[3])
  ]
  
  return result
})

console.log(result)

Answer 3

这是使用一些正则表达式的类似解决方案:)我想知道月份是以零还是一个作为索引开始！ Javascript日期需要零月索引。

console.log(["[Date.UTC(2016,09,30),250500.00]","[Date.UTC(2016,09,29),255100.83]", "[Date.UTC(2016,09,28),255600.82]"].map(function(i){
  var afloat;
  var date = /Date\.UTC\((\d{4}),(\d{2}),(\d{2})\)/.exec(i);
  date = new Date(Date.UTC(+date[1], +date[2] - 1, +date[3]));
  afloat = +i.split('),')[1].split(']')[0];
  return [date, afloat];
}))

Answer 4

Window

http://jsbin.com/kohexuh/1/edit?js,console

Answer 5

在georg的eval answer和Cerbrus的replace answer之间，有一个中间地带 eval，但不使用{ {1}}：eval

new Function

这显然不安全，但它很短，并且没有var from = ["[Date.UTC(2016,09,30),250500.00]","[Date.UTC(2016,09,29),255100.83]", "[Date.UTC(2016,09,28),255600.82]"]; var to = from.map( e => new Function( 'return'+e )() ) // To array .map( ([a,b]) => [new Date(a), b] ); // date to Date console.log( to );经常带来的其他惩罚。

转换字符串数组

5 个答案: