Question

my code has to be like this:

rules: {
  jform[name]: {
  required:true,
  minlength:5,
  maxlength:15
},

how should I use those square brackets? There are a lot of answers regarding this subject found on this website and on google, but not particularly for this one.

Answer 1

I’m guessing you want the value of jform[name] to a key in the object. You can’t use variables as keys when declaring an object literal. You’ll have to add this key as another statement.

Example:

var data = {
    rules: {
    }
};
data.rules[jform[name]]= {
    required:true,
     minlength:5,
     maxlength:15
};

If you want the key to literally be jform[name], then you need to use quotes around the key.

rules: {
    "jform[name]": {
        required:true,
        minlength:5,
        maxlength:15
    }
}