Assigning multiple variables containing jquery selectors faster with for loop

Question

How can I reduce the below code? I want to assign multiple variables in fewer lines, perhaps a for loop could help.

let a1 = $('[name="answer[1]"]:checked').val(),
    a2 = $('[name="answer[2]"]:checked').val(),
    a3 = $('[name="answer[3]"]:checked').val(),
    a4 = $('[name="answer[4]"]:checked').val(),
    a5 = $('[name="answer[5]"]:checked').val(),
    a6 = $('[name="answer[6]"]:checked').val(),
    a7 = $('[name="answer[7]"]:checked').val();

What I have tried but not working:

var i;
for (i = 1; i < 8; i++) {
    let a[i] = $('[name="answer['+i+']"]:checked').val();
}

https://stackoverflow.com/questions/6645067/javascript-dynamically-creating-variables-for-loops I think this will answer your question. — Budyn, Jun 07 '18 at 10:53
Possible duplicate of [JavaScript: Dynamically Creating Variables for Loops](https://stackoverflow.com/questions/6645067/javascript-dynamically-creating-variables-for-loops) — Albert Einstein, Jun 07 '18 at 10:58

score 0 · Answer 1 · answered Jun 07 '18 at 10:55

0

What I can think of is this

var i;
for (i = 1; i < 8; i++) { 
  let a[i] = $('[name="answer['+i+']"]:checked').val();
}

answered Jun 07 '18 at 10:55

Francesco

429
4
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score 0 · Answer 2 · answered Jun 07 '18 at 10:55

0

  for (var i = 0; i < 8; ++i) {
      a[i] = "whatever";
  }

as posted in JavaScript: Dynamically Creating Variables for Loops

answered Jun 07 '18 at 10:55

Budyn

563
7
21

Luca Kiebel · Accepted Answer · 2018-06-07T11:14:37.023

0

In a browser environment, you can assign variables by setting a property of the window object:

for (let i = 0; i < 8; i++) {
  window["a"+i] = "something "+i;
}

console.log(a2, a3);

As for your code, use this:

window["a"+i] = $('[name="answer['+i+']"]:checked').val();

In the for loop

edited Jun 07 '18 at 11:14

answered Jun 07 '18 at 10:55

Luca Kiebel

9,790
7
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Can you put an answer looping this `$('[name="answer[1]"]:checked').val()` ? – Jun 07 '18 at 11:12
I added an example for this. – Luca Kiebel Jun 07 '18 at 11:14

Assigning multiple variables containing jquery selectors faster with for loop

3 Answers3