Sha256: fe2e03165eaeaa9bc90cd37b209780216d3604d515e92e9dccdde3344a370899
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Size: 912 Bytes
Versions: 14
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Stored size: 912 Bytes
Contents
/**
* Returns an observable sequence containing a value that represents how many elements in the specified observable sequence satisfy a condition if provided, else the count of items.
* @example
* res = source.count();
* res = source.count(function (x) { return x > 3; });
* @param {Function} [predicate]A function to test each element for a condition.
* @param {Any} [thisArg] Object to use as this when executing callback.
* @returns {Observable} An observable sequence containing a single element with a number that represents how many elements in the input sequence satisfy the condition in the predicate function if provided, else the count of items in the sequence.
*/
observableProto.count = function (predicate, thisArg) {
return predicate ?
this.filter(predicate, thisArg).count() :
this.reduce(function (count) { return count + 1; }, 0);
};
Version data entries
14 entries across 7 versions & 1 rubygems