如何使用 underscore.js 编辑具有字符串键值对的对象数组中的字符串？

Question

如果可能的话，我更喜欢下划线解决方案，但如果这是我能得到的最好的解决方案，我会采用普通的 JS 解决方案。

我想使用数组 2 编辑 array1 对象中以 array2 中的字符串开头或结尾的字符串。我要找的结果可以在下面array3的结果中看到：

array1 = [{key1: "Patty Bakery", key2: stuff}, {key1: "Bob Wine Shack",
key2: mattersNot}, {key1: "Romeo Clothing", key2: things}, {key1:
"StackIt", key2: finished}];

array2 = ["Patty", "Romeo", "Wine Shack"];

array3 = [{key1: "Bakery", key2: stuff}, {key1: "Bob",
key2: mattersNot}, {key1: "Clothing", key2: things}, {key1:
"StackIt", key2: finished}];

到目前为止，我能做的最好的事情就是使用以下代码删除 array1 中的整个对象：

array1.filter(function(a){
return!_.some(array2, function(b){
return startsWith(a.key1, b)})})
//I have installed and am using underscore.string

这给了我一个 array3 看起来像

array3 = [{key1:"StackIt", key2: finished}];

Answer 1

您可以使用 Regex 作为开头或结尾的模式。

以下是描述相同内容的片段

var array1 = [{
  key1: "Patty Bakery",
  key2: "stuff"
}, {
  key1: "Bob Wine Shack",
  key2: "mattersNot"
}, {
  key1: "Romeo Clothing",
  key2: "things"
}, {
  key1: "StackIt",
  key2: "finished"
}];

var array2 = ["Patty", "Romeo", "Wine Shack"];
var array3 = [];
array2.forEach(function(item) {
  
  var startWithReg = new RegExp("^" + item);
  var endsWithReg = new RegExp(item + "$");
  
  console.log(startWithReg)
  
  array3 = array1.map(function(row) {
    
    row.key1 = row.key1.replace(startWithReg, '').trim();
    row.key1 = row.key1.replace(endsWithReg, '').trim();
    return row;
    
  });
})

console.log(array3)

如何使用 underscore.js 编辑具有字符串键值对的对象数组中的字符串？

How do you use underscore.js to edit a string in an array of objects that have a string key value pair?

javascript

arrays

string

underscore.js