709. Convert to lowercase letters

Source: Internet
Author: User

Implement the function toLowerCase (), which receives a string parameter, str, and converts the uppercase letters in the string to lowercase letters, and then returns a new string.

Example 1:

Input: "Hello"

Output: "Hello"

Example 2:

Input: "Here"

Output: "Here"

Example 3:

Input: "Lovely"

Output: "Lovely"

4varFind = function (s, Target){
5varL = s.length
6if(S.includes (target)) {
7 for(varI=0; i<l; i++) {
8if(S[i] = = target)returnI
Onereturn -1
-vartoLowerCase = function (str){
thevarR ="'
- for(vari =0; i < str.length; i++) {
-//uppercase is converted to lowercase
+if(Upper.includes (Str[i])) {
-varIDX = Find (upper, str[i])
+R + = Lower[idx]
at//is the lower case directly splicing up
-R + = Str[i]

709. Convert to lowercase letters

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