String literal. A string literal or anonymous string is a type of literal in programming for the representation of a string value within the source code of a computer program.
As usual, the devil is in the details. For instance, with some prepaid wireless plans, your minutes are only good for a limited time, usually 30 to 90 days. If you don't use them before they expire, they are simply subtracted from your account anyway.
If you purchase a set number of minutes at once, be mindful of their expiration date, usually anywhere from a month to a year after the purchase date. Pay-as-you-go plans may not be the best option if youâre interested in a smartphone because few companies allow smartphone users to take advantage of these plans.