我想轉換下面的數組

Question

我想轉換以下數組：

["A:100","B:234","C:124","D:634","E:543","F:657"];

進入：

["100:234:124:634:543:657"];

這個怎么做？

Answer 1

因此不確定是否要使用該特定輸出，因為它只是數組中的單個項目，但這應該可以工作：

 var testArray = ["A:100","B:234","C:124","D:634","E:543","F:657"]; var resultArray = []; for(var i = 0; i < testArray.length; ++i) { resultArray.push(testArray[i].split(':')[1]); } var strValue = resultArray.join(':'); console.log(strValue); resultArray = [strValue]; console.log(resultArray); 

Answer 2

您可以迭代數組，返回右側的數字，然后將其與':' 。

 var data = ["A:100","B:234","C:124","D:634","E:543","F:657"], result = [data.map(function (a) { return a.match(/\\d*$/); }).join(':')]; console.log(result); 

或更短

 var data = ["A:100","B:234","C:124","D:634","E:543","F:657"], result = [data.map(RegExp.prototype.exec.bind(/\\d*$/)).join(':')]; console.log(result); 

Answer 3

<script>
var arr=["A:100","B:234","C:124","D:634","E:543","F:657"];
var str='';
for(var i=0;i<arr.length;i++){
  str+=arr[i].split(":")[1]+":";
   }
 console.log(str.substring(0, str.length - 1));
</script>

Answer 4

您可以將數字保留在“：”后面，然后將新元素與“：”連接起來

 var data = ["A:100","B:234","C:124","D:634","E:543","F:657"]; var results = [data.map(x => x.split(":")[1]).join(":")]; console.log(results); 

Answer 5

你有你想要的東西加入它:通過把它分解你不不會/\\D\\:/ （后跟非數字: ），然后用一個空字符串加入吧'' ：

 var arr = ["A:100","B:234","C:124","D:634","E:543","F:657"]; var result = [arr.join(':').split(/\\D\\:/).join('')]; console.log(result);