diff --git a/snippets/lowercaseKeys.md b/snippets/lowercaseKeys.md new file mode 100644 index 000000000..6d4f63edf --- /dev/null +++ b/snippets/lowercaseKeys.md @@ -0,0 +1,16 @@ +### lowercaseKeys + +Creates a new object from the specified object, where all the keys are in lowercase. + +Use `Object.keys()` and `Array.reduce()` to create a new object from the specified object. +Convert each key in the original object to lowercase, using `String.toLowerCase()`. + +```js +const lowercaseKeys = obj => + Object.keys(obj).reduce((acc,key) => {acc[key.toLowerCase()] = obj[key]; return acc;},{}); +``` + +```js +const myObj = {Name: 'Adam', sUrnAME: 'Smith'}; +const myObjLower = lowercaseKeys(myObj); // {name: 'Adam', surname: 'Smith'}; +``` diff --git a/tag_database b/tag_database index d0a06ba0d..f5633a5fa 100644 --- a/tag_database +++ b/tag_database @@ -76,6 +76,7 @@ JSONToDate:date JSONToFile:node last:array lcm:math +lowercaseKeys:object mapObject:array max:math median:math