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/**
* Module exports.
*/
module.exports = throttle;
/**
* Returns a new function that, when invoked, invokes `func` at most one time per
* `wait` milliseconds.
*
* @param {Function} func The `Function` instance to wrap.
* @param {Number} wait The minimum number of milliseconds that must elapse in between `func` invokations.
* @return {Function} A new function that wraps the `func` function passed in.
* @api public
*/
function throttle (func, wait) {
var rtn; // return value
var last = 0; // last invokation timestamp
return function throttled () {
var now = new Date().getTime();
var delta = now - last;
if (delta >= wait) {
rtn = func.apply(this, arguments);
last = now;
}
return rtn;
};
}
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