Answers for "javascript if exist"

javascript check if variable exists

if (typeof myVar !== 'undefined') {
    // myVar is defined
}

Posted by: Guest on July-23-2019

how to check if exists in javascript

if (typeof(elem) !== 'undefined') {

Posted by: Guest on July-26-2021

how to check if object exists in javascript

if (typeof maybeObject != "undefined") {
   alert("GOT THERE");
}

Posted by: Guest on May-14-2020

how to check if exists in javascript

if (elem != null) {

Posted by: Guest on July-26-2021

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