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How to Change Apache Config Without Restarting

Sometimes you may need to modify Apache server configuration without restarting. Here is how to change Apache config without restarting.

Often you may need to modify NGINX configuration without restarting server. Here are the steps to do it.

Sometimes you may need to selected text from dropdown using jQuery. Here are the steps to do so.

Sometimes you may need to get data-id attribute of HTML DOM elements. Here is how to get data-id attribute in jQuery/JavaScript.

Sometimes you may need to check if images are loaded on your web pages. Here is how to check if image is loaded in jQuery/JavaScript.

Sometimes you may get ‘ambiguous column names’ error in MySQL. Here is how to fix ambiguous column names in MySQL.

Sometimes you may need to check if row exists in MySQL. Here are the steps to do so.

Sometimes you may need to center div on your page using jQuery. Here are the steps to do it.

Sometimes you may need to find element based on data attribute in jQuery. Here is how to select element by data attribute in jQuery.