计算包含逗号分隔的字符串的数组的长度

Question

Below is my array:

var array = ["abc.mp3,Lmn.mp3","pqr.mp3","ppp.mp3,ggg.mp3"];

Now I want to count length of this record but I would like to treat comma separated records as not a single record

For eg: abc.mp3, Lmn.mp3 want to to treat as 2 separated records by splitting with comma.

Expected length of array should be: 5

Is there any method which will simplify the process of counting this length instead of doing loop and then splitting each record by comma and then counting length one by one?

Answer 1

You can loop over array and create a new array that will have split values. Now you just have to do newArray.length

 var array = ["abc.mp3,Lmn.mp3","pqr.mp3","ppp.mp3,ggg.mp3"]; var ret = array.reduce(function(p,c){ return p.concat(c.split(',')); }, []) console.log(ret.length) 

Or, you can create a string and count number of commas and just add 1 to it

 var array = ["abc.mp3,Lmn.mp3","pqr.mp3","ppp.mp3,ggg.mp3"]; console.log(array.join().match(/,/g).length + 1) 

Answer 2

join array as string and then split string to array,then you can calculate the array length .

 var array = ["abc.mp3,Lmn.mp3","pqr.mp3","ppp.mp3,ggg.mp3"].join(',').split(','); console.log(array); console.log(array.length);