如何分割字符串，在一个字符前打断一个单词？

Question

我有以下字符串

'Material: Metall & PVC Size: Ø 32 mm Weight: 8 gram'

使用JavaScript，将其解析为最快的方法是：

var title = ["Material:", "Size:", "Weight:"];
var property = ["Metall & PVC", "Ø 32 mm", "8 gram"];

Answer 1

获得标题。

 var string, titles; string = 'Material: Metall & PVC Size: Ø 32 mm Weight: 8 gram'; titles = string.match(/[a-zA-Z]+:/g); console.log(titles); 

使用正则表达式/[a-zA-Z]+:/g

从标题中删除:

 var string, titles; string = 'Material: Metall & PVC Size: Ø 32 mm Weight: 8 gram'; titles = string.match(/[a-zA-Z]+:/g); for (var i = 0, len = titles.length; i < len; i++) { titles[i] = titles[i].slice(0, -1); } console.log(titles); 

Answer 2

尝试这个

var regex = new RegExp(title.join("|"));
var input = 'Material: Metall & PVC Size: Ø 32 mm Weight: 8 gram';
var property = input.split( regex ).slice(-(title.length));

演示

 var title = ["Material:", "Size:", "Weight:"]; var input = 'Material: Metall & PVC Size: Ø 32 mm Weight: 8 gram'; var regex = new RegExp(title.join("|")); var property = input.split(regex).slice(-(title.length)).map( function(item){ return item.trim(); }); console.log(property); 

Answer 3

我知道正则表达式并不便宜，如果标题中有空格，这将不起作用，但是我认为这对您来说可能是一个很好的起点。

var string='Material: Metall & PVC Size: Ø 32 mm Weight: 8 gram';
var title=[], properties=[];
string.split(/(\w+:) /).forEach(function(element,index){
  if(index>0){// ignore first empty element
    if(index%2==1){
      title.push(element); // collect titles
    }else{
      properties.push(element); // collect properties
    }
  }
});

Answer 4

 var string = 'Material: Metall & PVC Size: Ø 32 mm Weight: 8 gram'; var title = string.match(/[^ ]+:/g); var property = string.split(/ ?[^ ]+: ?/g).splice(1); console.log(title, property);