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$.error(String msg)<br>Throws an exception.$.readyException(error)<br>Handles errors thrown synchronously in functions wrapped in $(document).ready() or equivalent.$.globalEval(String code)<br>Similar to eval() in JavaScript except that $.globalEval(...) executes the code within the global context.<br>$.noop()<br>A dummy function that does nothing. It is used to be passed as a callback when nothing needs to be done.<br>$.now()<br>Return a number representing the current time. It is a shorthand for (new Date).getTime().<br>
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<!doctype html><html><head>
   <script src="jquery-3.5.1.min.js"></script></head><body> <p><button type="button" id="test">Test</button></p><div id="log"></div> <script>var me = {
  type: "zombie",
  test: function( event ) {    // Without proxy, `this` would refer to the event target    // use event.target to reference that element.
    var element = event.target;
    $( element ).css( "background-color", "red" ); // With proxy, `this` refers to the me object // encapsulating this function.
    $( "#log" ).append( "Hello " + this.type + "<br>" );
    $( "#test" ).off( "click", this.test );
  }}; var you = {
  type: "person",
  test: function( event ) {
    $( "#log" ).append( this.type + " " );
  }}; // Execute you.test() in the context of the `you` object// no matter where it is called// i.e. the `this` keyword will refer to `you`var youClick = $.proxy( you.test, you ); // attach click handlers to #test$( "#test" )  // this === "zombie"; handler unbound after first click
  .on( "click", $.proxy( me.test, me ) )   // this === "person"
  .on( "click", youClick )   // this === "zombie"
  .on( "click", $.proxy( you.test, me ) )   // this === "<button> element"
  .on( "click", you.test );</script> </body></html>
Passing the received error to console.error.
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jQuery.readyException = function( error ) {
  console.error( error );};