Is there a way in javascript (or typescript) to prevent redundant object rewriting within an if statement condition?
For example:
if (A != null || A != B) {
// do something here
}
// can it be done like this:
if (A != null || != B) { // avoid repeating "A" here
// do something here
}
Does anyone have suggestions or any other questions related to this topic?
Consider the following approach:
if([B, null].includes(A)) {
// ...
}
When dealing with if conditions, there isn't a predefined shortcut available. If you find yourself working with a complicated expression like A and wish to sidestep rewriting it, the common approach is to use a temporary variable:
if ( (temp=A) != null || temp != B ) {
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