Add values to array using for loop in JavaScript

Question

I know this is a simple issue, but I am stumped.

I want to do this using a for loop in JavaScript

 var arr = [
 { val: '1', text: '1' },
 { val: '2', text: '2' },
 { val: '3', text: '3' },
 .........
 { val: '30', text: '30' },
 { val: '31', text: '31' }
 ];

I tried this. I want create a select list which shows all month day

 var arr = [
 for (var i = 0; i < 32; i++) {
 { val: i, text: i },
 }
 ];

This shows error.

• Deepanshu Goyal: did you search anything about it ?
• MarsOne: He has tried something. It did not work. So i think its a valid question
• Sanketh Katta: to be fair, this is a valid line of python: arr = [{ "val": i, "text": i } for i in range(32)] and would produce the same result as above

Answer 1

Javascript does not have list comprehensions like that, try this instead:

var arr = [];
for (var i = 0; i < 32; i++) {
 arr.push({ val: i, text: i }); 
}