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Create throttle.js

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	`1`	`+/*`
	`2`	+ the handler would be invoked atmost once in `limit` seconds
	`3`	`+ examples: infinite scrolling check for the bottom of the screen etc...`
	`4`	`+*/`
	`5`	`+const throttle = (handler, limit) => {`
	`6`	`+ let inThrottle = false;`
	`7`	`+ return function () {`
	`8`	`+ if (!inThrottle) {`
	`9`	`+ handler.apply(this, arguments);`
	`10`	`+ inThrottle = true;`
	`11`	`+ setTimeout(() => inThrottle = false, limit);`
	`12`	`+ }`
	`13`	`+ }`
	`14`	`+}`

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