Question

can I use indexOf when looping through parsed Json output to find a particular object if only given a partial amount of it's identifier.

Basically I am calling the Betfair API to get the selectionIds but sometimes I only have the surname of a player and not the full name how is provided by the json response. I think I need something like this but cannot figure it out. The Json data is

var colors = ["blue", "red"];
$("div").click(function() {
    $(this).css({ background : colors.reverse()[0] });
});

code is

var response = { jsonrpc: '2.0',
  result: 
   [ { marketId: '1.118739296',
       marketName: 'Match Odds',
       marketStartTime: '2015-05-13T01:00:00.000Z',
       totalMatched: 17,
       runners: 
    [ { selectionId: 7750118,
        runnerName: 'Makoto Ninomiya',
        handicap: 0,
        sortPriority: 1,
        metadata: { runnerId: '7750118' } },
      { selectionId: 7659425,
        runnerName: 'Su Jeong Jang',
        handicap: 0,
        sortPriority: 2,
        metadata: { runnerId: '7659425' } } ],
       eventType: { id: '2', name: 'Tennis' },
       competition: { id: '7354189', name: 'ITF Women Kurume 2015' },
       event: 
    { id: '27442711',
      name: 'Ninomiya v Jang',
      countryCode: 'JP',
      timezone: 'Japan',
      openDate: '2015-05-13T01:00:00.000Z' } } ],
  id: 1 }

This finds the selectionID fine, but if I use only the surname like this I don't get a match

for (var i = 0; i<= Object.keys(response.result).length; i++ ) {
    if(response.result[0].runners[i].runnerName == 'Su Jeong Jang'){
      document.body.innerHTML = response.result[0].runners[i].selectionId;
    }      
 }

Can anybody point me in the right direction? Many thanks.

Answer 1

Your problem is that you are using public class ColorWheel { // Member variable (properties about the object) public String[] mColors = { "#39add1", "#3079ab", "#c25975", "#e15258", "#f9845b", "#838cc7", "#7d669e", "#53bbb4", "#e0ab18", "#637a91", "#f092b0", "#b7c0c7", "#FAEBD7", "#00FFFF", "#7FFFD4", "#0000FF", "#8A2BE2", "#A52A2A", "#DEB887", "#5F9EA0", "#7FFF00", "#D2691E", "#6495ED", "#DC143C", "#B8860B", "#A9A9A9", "#006400", "#FF8C00", "#8B0000", "#FFD700", "#FF69B4", "#4B0082", "#F08080", "#90EE90", "#87CEFA", "#FF4500", "#DA70D6", "#FA8072", "#9ACD32", "#00FF7F", "#4682B4", }; // Method (abilities: things the object can do) public int getColor(){ String color = ""; // Randomly select a fact Random randomGenerator = new Random(); // Construct a new Random number generator int randomNumber = randomGenerator.nextInt(mColors.length); color = mColors[randomNumber]; int colorAsInt = Color.parseColor(color); return colorAsInt; } }. However, > 0 will find the surname that you use in the first position, and return indexOf. Use 0 or > -1 instead.

use indexOf when accessing JSON with Javascript

1 个答案: