js: debounce and throttle

When we do searching in a page, probably we need to consider about throttle, and debounce. For debounce and throttle, the following are good examples of underscore’s version:

• http://jsfiddle.net/amyseqmedia/dD99u/37/
• http://stackoverflow.com/questions/24004791/can-someone-explain-the-debounce-function-in-javascript

In jsfiddle, there is the quick example for reference: //jsfiddle.net/williamjxj/jwo8eyya/embedded/