javascript - Check the object already exists in array in Vue.js -


i have data:

data: function() {         return {             conversations:              [              ]         } }

i'm getting data response object: response.data.conversation

is there way check this.conversations contains response.data.conversation?

to build on answer, if you're using underscore or lodash can use _.any()/_.some() function:

var exists = _.any(this.conversations, function(conversation) {     return _.isequal(conversation, response.data.conversation); })

you can use array.prototype.some same kind of thing:

var exists = this.conversations.some(function(conversation) {     return _.isequal(conversation, response.data.conversation); })

the benefits of these on solution they'll return find match (instead of iterating through whole array), though update code break out of loop early.

also, while _.isequal() cool, might able away simple property comparisons (if objects flat enough or, better, have key uniquely identifies conversation) determine if 2 objects equivalent:

var exists = this.conversations.some(function(conversation) {     return conversation.id === response.data.conversation.id; })

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