How to use the @react-native-firebase/common.isUndefined function in @react-native-firebase/common
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invertase / react-native-firebase / packages / ml-natural-language / lib / SmartReplyConversation.js View on Github 
addLocalUserMessage(text, timestamp) {
if (!isString(text)) {
throw new Error(
"firebase.naturalLanguage.SmartReplyConversation.addRemoteUserMessage(*, _, _) 'text' must be a string value.",
);
}
if (!isUndefined(timestamp) && !isNumber(timestamp)) {
throw new Error(
"firebase.naturalLanguage.SmartReplyConversation.addRemoteUserMessage(_, *, _) 'timestamp' must be a number value.",
);
}
this.messages.push({ text, timestamp: timestamp || Date.now() });
if (this.messages.length > this.messageHistoryLimit) {
this.messages = this.messages.slice(-this.messageHistoryLimit);
}
}@react-native-firebase/common
React Native Firebase internal common utilities & helpers.
