This is a draft cheat sheet. It is a work in progress and is not finished yet.
String Object MethodsMethod | Description | charAt() | Returns the character at the specified index | concat() | joins two or more strings, and returns a copy of the joined strings | indexOf() | returns the position of the first found occurence of a specified value in a string | lastIndexOf() | returns the position of the last found occurence of a specified value in a string | replace() | searches for a match between a substring (or regex) and a string, and replaces the matched substring with a new substring | search() | searches for a match between a regex and a string, and returns the position of the match | slice() | extracts a part of a string and returns a new string | split() | splits a string into an array of substrings | substr() | extracts the characters from a string, beginning at a specified start position, and through the specified number of character | substring() | extracts the characters from a string, between two specified indices | toLowerCase() | converts a string to lowercase letters | toUpperCase() | converts a string to uppercase letters | trim() | removes whitespace from both ends of a string | valueOf() | returns the primitive value of a String object | toString() | returns the value of a String object |
| | Array Object MethodsMethod | Description | concat() | joins two or more arrays, and returns a copy of the joined array | indexOf() | search the array for an element and returns its position | join() | joins all elements of an array into a string | lastIndexOf() | search the array for an element, starting at the end, and returns its position | pop() | removes the last element of an array, and returns that element | push() | adds new elements to the end of an array, and returns the new length | reverse() | reverses the order of the elements in an array | shift() | removes the first element of an array, and returns that element | sort() | sorts the elements of an array | toString() | converts an array to a string, and returns the result | valueOf() | returns the primitive value of an array |
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