The indexOf method of String values searches this string and returns the index of the first occurrence of the specified substring It takes an optional starting position and returns the first occurrence of the specified substring at an index greater than or equal to the specified number

JavaScript Array indexOf Programiz

JavaScript String indexOf Method W3Schools

JavaScript Array indexOf Method GeeksforGeeks

In Java the String indexOf method returns the position of the first occurrence of the specified character or string in a specified string In this article we will learn various ways to use indexOf in Java Example

The indexOf method of Array instances returns the first index at which a given element can be found in the array or 1 if it is not present Element to locate in the array Zerobased index at which to start searching converted to an integer

StringprototypeindexOf JavaScript MDN MDN Web Docs

ArrayprototypeindexOf JavaScript MDN MDN Web Docs

Index Of

ArrayprototypeindexOf MDN Web Docs

indexOf Returns the index of the first occurrence of a value in an array

Difference Between indexOf and findIndex function of array

JavaScript String indexOf Method JavaScript Tutorial

Returns the first index of the element in the array if it is present at least once Returns 1 if the element is not found in the array Note indexOf compares searchElement to elements of the Array using strict equality similar to tripleequals operator or

The indexOf method in JavaScript is used to find the position of the first occurrence of a specific value in an array If the value is not present it returns 1 This method is handy for quickly determining where a particular item is located within an array

Index Of

Java String indexOf Method W3Schools

Summary in this tutorial youll learn how to use the JavaScript String indexOf method to find the index of the first occurrence of a substring within a string The StringprototypeindexOf returns the index of the first occurrence of the substring substr in a string str

The index to start the search at If the index is greater than or equal to the arrays length 1 is returned which means the array will not be searched If the provided index value is a negative number it is taken as the offset from the end of the array Note if the provided index is negative the array is still searched from front to back

Java String indexOf Method GeeksforGeeks

The indexOf method returns the position of the first occurrence of a value in a string The indexOf method returns 1 if the value is not found The indexOf method is case sensitive Required The string to search for Optional The position to start from default is 0

An int value representing the index position to start the search from char An int value representing a single character eg A or a Unicode value Technical Details Returns An int value representing the index of the first occurrence of the character in the string or 1 if it never occurs