javascript check if set
if (typeof variable !== 'undefined') {
// the variable is defined
}
//or
if (typeof variable === 'undefined') {
// variable is undefined
}javascript check if set
if (typeof variable !== 'undefined') {
// the variable is defined
}
//or
if (typeof variable === 'undefined') {
// variable is undefined
}Copyright © 2021 Codeinu
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