key - IndexOf an associative array in javascript -


can tell me please how index of associative array??

for example index of key:".launchpad-plankovy"??

        var droppableclasses = [            {key:".stackdrop-plankovy", value:".card-plankovy"},             {key:".launchpad-plankovy", value:".card-plankovy"}         ];

with es6 can use findindex() this.

var droppableclasses = [{    key: ".stackdrop-plankovy",    value: ".card-plankovy"  }, {    key: ".launchpad-plankovy",    value: ".card-plankovy"  }];    var index = droppableclasses.findindex(function(e) {    return e.key == '.launchpad-plankovy';  })    console.log(index)


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