check if jquery is installed
if (typeof jQuery == "undefined") {
alert("JQuery is not installed");
} else {
alert("JQuery is installed correctly!");
}check if jquery is installed
if (typeof jQuery == "undefined") {
alert("JQuery is not installed");
} else {
alert("JQuery is installed correctly!");
}what jqury is installed
if (typeof jQuery != 'undefined') {
// jQuery is loaded => print the version
alert(jQuery.fn.jquery);
}Copyright © 2021 Codeinu
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