Only keep a single instance, aborting previous instances on subsequent calls

npm install auto-abort

var autoAbort = require('auto-abort')
var autoXhr = autoAbort(require('xhr'))

autoXhr({url: '/autocomplete', json: {q: 'hel'}}, handleResponse)
autoXhr({url: '/autocomplete', json: {q: 'hell'}}, handleResponse)
autoXhr({url: '/autocomplete', json: {q: 'hello'}}, handleResponse)

function handleResponse (err, data, res) {
  // Should only be called once, with the most recent request
}

Wraps fn with a function that will only keep a single instance of whatever fn returns around, calling .abort() on the previous instance before calling fn again. If you need to call another function than .abort(), use the abortHandler.

Type: Function

The function to wrap. Examples being xhr and d3.json

Type: Function
Default: function (instance) { return instance.abort() }

Allows you to abort the instance manually, eg. if you need to do some other logic around it or have an abort function of another name, eg. .cancel() like on requestAnimationFrame

ISC