Currently, I am working on creating a registration form in Angular. My goal is to verify if the User's username exists and then assign that value to the object if it is not null.
loadData(data: User) {
data.username && (this.registrationData.username = data.username.trim());
}
However, I encountered an issue where this error message appears: Unused expression, expected an assignment or function call (no-unused-expression)
It's important to avoid overusing && in place of if. Instead, try using:
if (formData.name) {
this.userData.name = formData.name.trim();
}
Alternatively, you can consider:
const trimmedName = formData.name.trim();
if (trimmedName ) {
this.userData.name = trimmedName;
}
Here's a common guideline from the tslint ruleset that emphasizes the importance of not letting an expression go unused.
To follow this rule, you can implement an if statement as shown below:
handleData(data: User) {
if (data.email) {
this.userData.email = data.email.trim();
}
}
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