wed
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Wed is a schema-aware editor for XML documents.
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JavaScript
define(function(require,exports,module){
/** PURE_IMPORTS_START _observable_fromArray,_observable_scalar,_observable_empty,_observable_concat,_util_isScheduler PURE_IMPORTS_END */
import { fromArray } from '../observable/fromArray';
import { scalar } from '../observable/scalar';
import { empty } from '../observable/empty';
import { concat as concatStatic } from '../observable/concat';
import { isScheduler } from '../util/isScheduler';
/* tslint:enable:max-line-length */
/**
* Returns an Observable that emits the items you specify as arguments before it begins to emit
* items emitted by the source Observable.
*
* <img src="./img/startWith.png" width="100%">
*
* @param {...T} values - Items you want the modified Observable to emit first.
* @param {Scheduler} [scheduler] - A {@link IScheduler} to use for scheduling
* the emissions of the `next` notifications.
* @return {Observable} An Observable that emits the items in the specified Iterable and then emits the items
* emitted by the source Observable.
* @method startWith
* @owner Observable
*/
export function startWith() {
var array = [];
for (var _i = 0; _i < arguments.length; _i++) {
array[_i] = arguments[_i];
}
return function (source) {
var scheduler = array[array.length - 1];
if (isScheduler(scheduler)) {
array.pop();
}
else {
scheduler = null;
}
var len = array.length;
if (len === 1 && !scheduler) {
return concatStatic(scalar(array[0]), source);
}
else if (len > 0) {
return concatStatic(fromArray(array, scheduler), source);
}
else {
return concatStatic(empty(scheduler), source);
}
};
}
//# sourceMappingURL=startWith.js.map
return module.exports;
});