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How Do I Defer Parsing JavaScript in Shopify?

Last updated on October 1, 2022 @ 4:10 pm

JavaScript is a high-level programming language that is interpreted by web browsers. It is a language that is also used in server-side scripting, game development, and desktop applications.

JavaScript is one of the three core technologies of the World Wide Web, along with HTML and CSS.

JavaScript can be used to improve the performance of web pages by deferring the parsing of JavaScript code until it is needed. By deferring the parsing of JavaScript code, the browser can continue to display the content of the web page while the JavaScript code is being parsed. This can improve the perceived performance of the web page because the content is displayed sooner.

PRO TIP: If you are not comfortable with making code changes to your theme, we recommend that you reach out to a Shopify Expert. Deferring parsing of JavaScript can improve your site’s performance, but if done incorrectly, it can break your site.

Shopify uses a number of different techniques to defer parsing of JavaScript code. One technique is to use inline scripts. Inline scripts are scripts that are included in the HTML code of a web page.

They are executed as soon as they are encountered by the browser. By using inline scripts, Shopify can defer parsing of JavaScript code until it is needed.

Another technique that Shopify uses to defer parsing of JavaScript code is to use external scripts. External scripts are scripts that are not included in the HTML code of a web page. They are loaded from an external file and executed when they are needed. By using external scripts, Shopify can defer parsing of JavaScript code until it is needed.

Deferring parsing of JavaScript code can improve the performance of web pages by allowing the browser to continue to display the content while the JavaScript code is being parsed. Shopify uses a number of different techniques to defer parsing of JavaScript code, including inline scripts and external scripts.

Drew Clemente

Drew Clemente

Devops & Sysadmin engineer. I basically build infrastructure online.