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Python-benchmark-different-ways-to-join-strings.md

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+#  different ways to join strings
+
+I measured the time it takes to make 100000 concatenations to the different ways of joining strings to see which is the best and which is the worst
+
+```Python
+a, b, c = "egg", "ham", "spam"
+
+# Prueba de concatenado con el operador "+"
+@explain_time
+def test_operator_plus():
+    for _ in range(100000):
+        a + b + c
+
+>>> test_operator_plus()
+         2 function calls in 0.029 seconds
+
+   Ordered by: standard name
+
+   ncalls  tottime  percall  cumtime  percall filename:lineno(function)
+        1    0.029    0.029    0.029    0.029 <ipython-input-314-0f5c5594903b>:1(test_operator_plus)
+        1    0.000    0.000    0.000    0.000 {method 'disable' of '_lsprof.Profiler' objects}
+
+# Prueba de concatenado con el método "join"
+@explain_time
+def test_method_join():
+    for _ in range(100000):
+        "".join((a, b, c))
+
+>>> test_method_join()
+         100002 function calls in 0.049 seconds
+
+   Ordered by: standard name
+
+   ncalls  tottime  percall  cumtime  percall filename:lineno(function)
+        1    0.032    0.032    0.049    0.049 <ipython-input-316-953c959108ce>:1(test_method_join)
+        1    0.000    0.000    0.000    0.000 {method 'disable' of '_lsprof.Profiler' objects}
+   100000    0.017    0.000    0.017    0.000 {method 'join' of 'str' objects}
+
+ #Prueba de concatenado con los verbos como en C
+@explain_time
+def test_format_c_like(): 
+    for _ in range(100000):
+        "%s%s%s"%(a, b, c) 
+
+>>> test_format_c_like()
+         2 function calls in 0.037 seconds
+
+   Ordered by: standard name
+
+   ncalls  tottime  percall  cumtime  percall filename:lineno(function)
+        1    0.037    0.037    0.037    0.037 <ipython-input-318-80c622dd1350>:1(test_format_c_like)
+        1    0.000    0.000    0.000    0.000 {method 'disable' of '_lsprof.Profiler' objects}
+
+# Prueba de concatenado con el método "format"
+@explain_time
+def test_method_format():
+    for _ in range(100000):
+        "{}{}{}".format(a, b, c)
+
+>>> test_method_format()
+         100002 function calls in 0.066 seconds
+
+   Ordered by: standard name
+
+   ncalls  tottime  percall  cumtime  percall filename:lineno(function)
+        1    0.025    0.025    0.066    0.066 <ipython-input-321-c7b97e43fcc1>:1(test_method_format)
+        1    0.000    0.000    0.000    0.000 {method 'disable' of '_lsprof.Profiler' objects}
+   100000    0.041    0.000    0.041    0.000 {method 'format' of 'str' objects}
+
+# Prueba de concatenado utilizando los f-strings
+@explain_time 
+def test_f_strings(): 
+    for _ in range(100000):
+        f"{a}{b}{c}" 
+
+>>> test_f_strings()
+         2 function calls in 0.024 seconds
+
+   Ordered by: standard name
+
+   ncalls  tottime  percall  cumtime  percall filename:lineno(function)
+        1    0.024    0.024    0.024    0.024 <ipython-input-324-85e436d5b675>:1(test_f_strings)
+        1    0.000    0.000    0.000    0.000 {method 'disable' of '_lsprof.Profiler' objects}
+```