Typehead twitter search implement

typeahead.twitter.js

this.getRemoteSuggestions = function(a, b, c, d) {
    if (!b || !this.needsRemoteRequest(b, d))
        return;
    this.request[a] || (this.attr.useThrottle ?
        this.request[a] = utils.throttle(this.splitRemoteRequests.bind(this), this.attr.remoteThrottleInterval) :
        this.request[a] = utils.debounce(this.splitRemoteRequests.bind(this), this.attr.remoteDebounceInterval)),
    b.query.indexOf("@") === 0 && b.typeaheadSrc === "COMPOSE" && (b.query = b.query.substring(1),
    b.atSignRemoved = !0),
    this.request[a](a, b, c, d)
}