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Lodash _.throttle



The lodash _.throttle method is a function that limits the number of times a function can be executed within a certain time frame. It allows for a more efficient user experience by reducing the number of times an event is triggered and executed.


_.throttle(func, wait, [options])


  • func (Function): The function to throttle.
  • wait (number): The number of milliseconds to throttle the function execution by.
  • options (Object): The options object contains two properties:
    • leading (Boolean): true to execute the function on the leading edge of the throttle window; false to execute the function on the trailing edge.
    • trailing (Boolean): true to execute the function on the trailing edge of the throttle window; false to not execute the function on the trailing edge.

Return Value:

Returns a new throttled function.


Here is an example of how to use lodash _.throttle method:

import { throttle } from 'lodash';

window.addEventListener('resize', throttle(handleResize, 1000));

function handleResize() {
  console.log('Window is resized!');

In this example, the handleResize function is throttled so that it can only execute once every 1000 milliseconds (or 1 second) when the window is resized.


The options object in the _.throttle method provides two properties, leading and trailing, to specify when the throttled function should be executed. By default, leading is set to true and trailing is set to true.

  • If leading is set to false, the throttled function will not execute on the leading edge of the throttle window.
  • If trailing is set to false, the throttled function will not execute on the trailing edge of the throttle window.


Using the lodash _.throttle method in your code improves the performance of your application by preventing unnecessary function calls, which can lead to reduced lag or jank. It also ensures that your code runs more efficiently and delivers a better user experience.


The lodash _.throttle method is an important function that helps optimize the performance of your application by limiting the number of times a function can execute within a given time frame. This function is valuable in reducing the strain that comes with excessive event firing and function execution, which leads to a more efficient and effective user experience.