check if a variable is undefined jquery
if (typeof value === "undefined") {
// ...
}check if a variable is undefined jquery
if (typeof value === "undefined") {
// ...
}check if variable is undefined or null jquery
if (variable == null) {
// variable is either null or undefined
}how to check if value is undefines if condition jquery
if (value === undefined) {
// ...
}Copyright © 2021 Codeinu
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