The JavaScript String indexOf function is used to find the index of a specified substring within a string. It takes one or two arguments, the first being the substring to search for and the second being an optional starting index. If the substring is found, the...

The JavaScript String indexOf function is used to find the index of a specified substring within a string. It takes one or two arguments, the first being the substring to search for and the second being an optional starting index. If the substring is found, the...

The JavaScript String indexOf function is used to find the index of a specified substring within a string. It takes one or two arguments, the first being the substring to search for and the second being an optional starting index. If the substring is found, the...

The JavaScript String indexOf function is used to find the index of a specified substring within a string. It takes one or two arguments, the first being the substring to search for and the second being an optional starting index. If the substring is found, the...

The JavaScript String concat() function is used to concatenate two or more strings and return a new string. It takes one or more string arguments and joins them together in the order they are provided. The original strings are not modified, and the resulting...

The JavaScript String concat() function is used to concatenate two or more strings and return a new string. It takes one or more string arguments and joins them together in the order they are provided. The original strings are not modified, and the resulting...

The JavaScript String concat() function is used to concatenate two or more strings and return a new string. It takes one or more string arguments and joins them together in the order they are provided. The original strings are not modified, and the resulting...

The JavaScript String charCodeAt() function returns the Unicode value of the character at the specified index in a string. The index is zero-based, meaning the first character in the string has an index of 0, the second character has an index of 1, and so on. The...

The JavaScript String charCodeAt() function returns the Unicode value of the character at the specified index in a string. The index is zero-based, meaning the first character in the string has an index of 0, the second character has an index of 1, and so on. The...

The JavaScript String charCodeAt() function returns the Unicode value of the character at the specified index in a string. The index is zero-based, meaning the first character in the string has an index of 0, the second character has an index of 1, and so on. The...