VS Text
capitalizeFirstLetter: They're people of great learning English. -> They're people of great learning english.
ucFirstAllWords: They're people of great learning English. ->They're People Of Great Learning English.
upTO_CASE: They're people of great learning English. -> THEY'RE PEOPLE OF GREAT LEARNING ENGLISH.
tolower_case: They're people of great learning English. ->they're people of great learning english
to change
Haiz hôm nay lại thảo mai rồi
haiz-hom-nay-lai-thao-mai-roi
to change by split
Haiz hôm nay lại thảo mai rồi
Haiz hôm nay lại thảo mai rồi