Check string in collection of objects using jQuery

Question

I have JSON collection object like this

"Sections":[
    {"SectionName":"Dallas", ...}, 
    {"SectionName":"Austin", ...}, 
    {"SectionName":"Housto", ...}
]

If I want search for string "Austin" - how can I search directly without looping?

I am doing this but it is not straight.

 if (sections.length > 0) {
               $.each(sections, function(myObject) {
                   var sectionObject = sections[myObject];

                   if (Object.keys(sectionObject).length > 0 && sectionObject["SectionName"] != undefined) {
                    ...
                   }
               });

You will have loop through your array once. There is no other way here. Obviously, not considering an option to implement one of the search algorithms. But I think, that's not what you meant? — Uzbekjon
– Uzbekjon, Commented May 4, 2016 at 20:09
@Uzbekjon not true! You can do it manually, and then die internally when you're asked to change things. — Sterling Archer
– Sterling Archer, Commented May 4, 2016 at 20:09

Nenad Vracar · Accepted Answer · 2016-05-04 20:25:33Z

2

You can use Filter and return only objects which contains "SectionName": "Austin"

var data = {
  "Sections": [{
    "SectionName": "Dallas",
  }, {
    "SectionName": "Austin",
  }, {
    "SectionName": "Housto",
  }]
}

data = data['Sections'].filter(el => el['SectionName'] == 'Austin');
console.log(data)

edited May 4, 2016 at 20:25

answered May 4, 2016 at 20:14

Nenad Vracar

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1 Comment

Sterling Archer Over a year ago

Mandatory lambda syntax because: data = data['Sections'].filter(el => el['SectionName'] = 'Austin');

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