如何用多个分号分割字符串 javascript

Question

I have a string like below

var exampleString = "Name:Sivakumar; Tadisetti;Country:India"

I want to split above string with semi colon, so want the array like

var result = [ "Name:Sivakumar; Tadisetti", "Country:India" ]

But as the name contains another semi colon, I am getting array like

var result = [ "Name:Sivakumar ", "Tadisetti", "Country:India" ]

Here Sivakumar; Tadisetti Sivakumar; Tadisetti value of the key Name

I just wrote the code like exampleString.split(';') ... other than this not able to get an idea to proceed further to get my desired output. Any suggestions?

Logic to split : I want to split the string as array with key:value pairs

Answer 1

Since .split accepts regular expressions as well, you can use a one that matches semicolons that are only followed by alphanumeric characters that end in : ( in effect if they are followed by another key )

/;(?=\w+:)/

 var exampleString = "Name:Sivakumar; Tadisetti;Country:India"; var result = exampleString.split(/;(?=\w+:)/); console.log(result)

Answer 2

here is an approach which we first split the input on ; and then concat the element without : with the previous one; since it shouldn't being spited.

 let exampleString = "Name:Sivakumar; Tadisetti;Country:India" let reverseSplited = exampleString.split(";").reverse(); let prevoiusString; let regex = /[^:]+:.*/; let result = reverseSplited.map( str => { if(regex.test(str)) { if(prevoiusString){ let returnValue = str + ";" + prevoiusString; prevoiusString = null; return returnValue } return str } prevoiusString = str; }).filter(e=>e); console.log(result);