data[0].estate !== (0 || null || "")
data[0].estate !== (0 || null || "")for not looking at your needs, others do not know, generally speaking, we write:
if (typeof data[0].estate !== 'undefined') {
//
}
if (!!data[0].estate) {
// undefined,null,0,'',false
}
// if &&
data[0].estate && doSomething()
// status
if (status) {
// other code
}
//
if (!!status) {
// other code
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