如何将字符串解析为特定的数组字符？

Question

In some point, I was able to end this array from my node js server to the navigator page, but it was received as a String so I need to parse it into an array

"['Date', 'Call (minutes)'],['Date1', 100],['Date2', 1370],['Date3', 660],['Date4', 1030],['Date5', 1000],['Date6', 1170],['Date7', 660]"

Is there any tool that can help me to parse it into its array form?

Answer 1

You need to replace single quotes to double and wrap the string in brackets for getting an array of arrays.

 const string = "['Date', 'Call (minutes)'],['Date1', 100],['Date2', 1370],['Date3', 660],['Date4', 1030],['Date5', 1000],['Date6', 1170],['Date7', 660]", array = JSON.parse(`[${string.replace(/'/g, '"')}]`); console.log(array);

Another approach is to use eval , if the data is reliable.

 const string = "['Date', 'Call (minutes)'],['Date1', 100],['Date2', 1370],['Date3', 660],['Date4', 1030],['Date5', 1000],['Date6', 1170],['Date7', 660]", array = eval(`[${string}]`); console.log(array);

Answer 2

If you are forced to use this string, then you have to "make it" looks like JSON, but be aware that this is a very bad idea , you should consider doing something else on your backend in order to send JSON strings to the front end , and not strings with some kind of format.

If you want to risk, you can do something like this:

 let res = JSON.parse('[' + "['Date', 'Call (minutes)'],['Date1', 100],['Date2', 1370],['Date3', 660],['Date4', 1030],['Date5', 1000],['Date6', 1170],['Date7', 660]".replaceAll("'", '"') + ']') console.log(res)

Answer 3

You can use JSON.parse to convert string to array. Here, pls take care on single quotes. Before using JSON.parse , you need to convert single quotes( ' ) to double quotes ( " ).

 var str = "['Date', 'Call (minutes)'],['Date1', 100],['Date2', 1370],['Date3', 660],['Date4', 1030],['Date5', 1000],['Date6', 1170],['Date7', 660]"; var parsedArray = JSON.parse(`[${str.replaceAll("'", '"')}]`); console.log(parsedArray);

Answer 4

You can use

JSON.parse(string);

UPD : I didn't notice that JSON-incompatibile single quotes are used.

I'd propose to just replace them with double quotes:

const jsonCompatString = string.replace(/'/g, `"`);
const serverData = JSON.parse(jsonCompatString);