Physics. the flow of a gas through a small orifice at such density that the mean distance between the molecules is large compared with the diameter of the orifice. Men who indulge themselves in writing anonymous accusations seldom limit themselves to one effusion.
For US Zip code validation Use below regular Expression. ^([0-9]{5})$. For Canada Postal code validation Use below regular Expression to validate the zip/postal code in your form. ^[ABCEGHJKLMNPRSTVXYabceghjklmnprstvxy]{1}\d{1}[A-Za-z]{1} *\d{1}[A-Za-z]{1}\d{1}$.
Field Value. Validates that the account Billing Zip/Postal Code is valid. by looking up the first five characters of the value in a custom object. called Zip_Code__c that contains a record for every valid zip code in the. US. If the zip code is not found in the Zip_Code__c object, or the.