javascript methods cheat sheet
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sure! here's a cheat sheet of commonly used javascript methods along with a brief explanation and an example for each:
1. **`touppercase()`**: converts a string to uppercase.
2. **`tolowercase()`**: converts a string to lowercase.
3. **`split()`**: splits a string into an array of substrings based on a specified separator.
4. **`join()`**: joins all elements of an array into a string.
5. **`indexof()`**: returns the index of the first occurrence of a specified value in a string.
6. **`includes()`**: determines whether a string contains a specified substring.
7. **`slice()`**: extracts a section of a string and returns it as a new string.
8. **`tofixed()`**: formats a number using fixed-point notation.
9. **`sort()`**: sorts the elements of an array in place and returns the sorted array.
10. **`map()`**: creates a new array with the results of calling a provided function on every element in the array.
these are just a few of the many useful javascript methods available. you can refer to the official documentation for more detailed information and examples.
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