jQuery检查索引值的一部分

Question

I have an array or objects and I need to find a key that contains part of a string, not the value associated with the key. Can inArray do this or is there an alternative?

Example array has a key with form_iQc2lz6yr7[contactName] and a value of "John Smith". I need to search in this array for the key containing the string "[contactName]" as the string before this can change but [contactName] will always stay the same. Then I need to change the key to just "contactName".

Example:

[
  {name: "action", value: "someUrl"},
  {name: "list", value: "123344"},
  {name: "form_iSfMSWen3Y[contactName]", value: ""},
  {name: "form_iSfMSWen3Y[email]", value: ""},
  {name: "form_iSfMSWen3Y[subject]", value: ""}
]

Full context, I need to submit this form via ajax then once that is complete, change the key of form_iSfMSWen3Y[contactName], form_iSfMSWen3Y[email], and form_iSfMSWen3Y[subject] to contactName, email, subject, respectively and then submit to another url.

Answer 1

you can do this in one .map()

obj = {
  p1_abc: 1,
  p2_abc: 2,
  p3_def: 3,
  p4_abc: 4,
  p5_def: 5
}

required_keys = jQuery.map(Object.keys(obj), function(val, i) {
  if (val.indexOf("_abc") != -1) {
    return obj[val];
  }

});
document.write(required_keys);

or If you want key/values you can do like

obj = {
  p1_abc: 1,
  p2_abc: 2,
  p3_def: 3,
  p4_abc: 4,
  p5_def: 5
}

required_keys = jQuery.map(Object.keys(obj), function(val, i) {
  if (val.indexOf("_abc") != -1) {
    return {[val]:obj[val]};
  }

});
document.write(JSON.stringify(required_keys));