How does JavaScript split work on Arabic plus English number strings?

Question

When I tried splitting:

"بحد-8635".split('-') 

then JavaScript gives me this result:

[0] - بحد, [1] - 8635 

console.log("بحد-8635".split('-'))

And when I tried splitting:

"2132-سسس".split('-') 

it gives me this different result:

[0] - 2132 [1] - سسس 

console.log("2132-سسس".split('-'))

How is this happening? How can this be implemented correctly?

Answer 1

It depends on how you type the string (left to right / right to left). In the provided question, "2132-سسس" was typed from left to right and "8635-بحد" was typed from right to left.

Check the below snippet.

console.log("Typed left to right:");  console.log("2132-سسس".split('-'));  console.log("8635-بحد".split('-'));    console.log("---------------");    console.log("Typed right to left as Arabians follow:");  console.log("سسس-2132".split('-'));  console.log("بحد-8635".split('-'));