How to Dynamically Reload CSS Without Reloading the Page?

Reloading CSS Dynamically

Modifying CSS during development often requires page reloads to observe changes. This can be cumbersome and inefficient. Fortunately, there are techniques to update CSS without reloading the page.

Solution: jQuery Function

For external stylesheets, jQuery offers a convenient method:

/**
 * Forces a reload of all stylesheets by appending a unique query string
 * to each stylesheet URL.
 */
function reloadStylesheets() {
    var queryString = '?reload=' + new Date().getTime();
    $('link[rel="stylesheet"]').each(function () {
        this.href = this.href.replace(/\?.*|$/, queryString);
    });
}

Implementation

This function appends a unique query string to each stylesheet URL. Browsers recognize the changed URL and reload the corresponding CSS files.

Alternative Approaches

Consider other options if external stylesheets are not applicable:

• CSS Snippets: Insert CSS code directly into the document's style element using JavaScript.
• Browser Extensions: Install browser extensions that provide live CSS editing functionality.

Conclusion

The jQuery function presented provides an easy way to reload external stylesheets dynamically, eliminating the need to reload the entire page. This approach is suitable for in-page CSS editors that require live previewing.

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