Strings

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s = '  Hello, Crow  '
log[trim[s]]
log[upper['crow']]
log[lower['CROW']]
log[replace['a-b-c', '-', '+']]
log[starts['crowfile', 'crow']]
log[ends['main.co', '.co']]
log[repeat['ab', 3]]
log[split['x,y,z', ',']]
log[join[['x', 'y', 'z'], '/']]
log[reverse['abc']]
w = 'hello'
log[len[w]]
log[w[0]]
log[w[-1]]