INSTR Meaning and
Definition
-
INSTR is a computer programming function that stands for "String Instr" or "Index of String." It is commonly used in various programming languages to determine the position of a specific character or substring within a given string. The INSTR function returns an integer value representing the starting position of the specified substring within the string.
Typically, the INSTR function takes two arguments: the first is the source string where the search will be performed, and the second is the substring that needs to be located within the source string. Upon execution, the INSTR function scans the source string from left to right, looking for the first occurrence of the specified substring. Once found, it returns the index or position of the substring as an integer.
If the substring is not found within the source string, the INSTR function usually returns zero or a negative value to indicate the absence of the substring. Some programming languages might return -1 in case of no match.
The INSTR function is frequently used for processing and manipulating text data. It is particularly helpful for scenarios such as searching for specific words, validating inputs, extracting substrings, and performing conditional operations based on the presence or absence of certain characters within a string. The INSTR function provides a valuable tool for programmers to efficiently analyze and manipulate strings in their code.
Common Misspellings for INSTR
Infographic
Add the infographic to your website:
