删除关联数组中的元素

Question

How would i go about creating a set of buttons which when clicked deletes individual elements stored in an associative array? I've tried the splice element.. but it doesn't seem to work. I'm new to programming so any help would be appreciated. Thanks

bodyText = bodyText + '<input type="button" id="btnDeleteQuestion" 
value="Delete a question" onClick="questionBank.splice.(0,1) ">';

Answer 1

Associative arrays in JavaScript are plain old objects with key/value pairs. Use the delete operator to delete a key.

 var myObject = { key1:"key1Value", key2:"key2Value", key3:"key3Value", key4:"key4Value" }; console.log(myObject); document.getElementById("btnDeleteQuestion").addEventListener("click", function(){ delete myObject["key4"]; console.log(myObject); }); 

 <input type="button" id="btnDeleteQuestion" value="Delete a question">