Thursday, 8 February 2018
How do I remove a property from a JavaScript object?
Answer
Answer
Say I create an object as follows:
var myObject = {
"ircEvent": "PRIVMSG",
"method": "newURI",
"regex": "^http://.*"
};
What is the best way to remove the property regex to end up with new myObject as follows?
var myObject = {
"ircEvent": "PRIVMSG",
"method": "newURI"
};
Answer
Like this:
delete myObject.regex;
// or,
delete myObject['regex'];
// or,
var prop = "regex";
delete myObject[prop];
Demo
var myObject = {
"ircEvent": "PRIVMSG",
"method": "newURI",
"regex": "^http://.*"
};
delete myObject.regex;
console.log(myObject);For anyone interested in reading more about it, user kangax has written an incredibly in-depth blog post about the delete statement on their blog, Understanding delete. It is highly recommended.
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