{"id":93,"date":"2021-03-11T17:12:35","date_gmt":"2021-03-11T17:12:35","guid":{"rendered":"https:\/\/blogs.glowscotland.org.uk\/sh\/ahscomputingpython\/?page_id=93"},"modified":"2021-05-13T16:24:06","modified_gmt":"2021-05-13T15:24:06","slug":"string-operations","status":"publish","type":"page","link":"https:\/\/blogs.glowscotland.org.uk\/sh\/ahscomputingpython\/reference\/string-operations\/","title":{"rendered":"String Operations"},"content":{"rendered":"

Concatenation<\/h1>\n

Concatentation<\/em> is joining strings together.<\/p>\n

The SQA will use ampersand (&), but Python uses plus (+) signs.<\/p>\n

\r\n#\r\nfullname = forename + ' ' + surname\r\n#\r\n<\/pre>\n
\n
String Length<\/h1>\n
The len() function will return the number of characters in a string.<\/p>\n
\r\n#\r\npin = input("Enter your PIN:")\r\npinLength = len(pin)\r\nprint(f"That has {pinLength} characters")\r\n#\r\n<\/pre>\n
\n
Characters and ASCII (for Higher)<\/h1>\n
#\r\n# ord - returns the number representing the unicode code of a specified \r\nnumber = ord("A")\r\n\r\n# chr - returns the character that represents the specified\r\nletter = chr(65) \r\n \r\n#<\/pre>\n
\n
String Slicing (Substrings)\u00a0(for Higher)<\/h1>\n
Each character in a string has an\u00a0index<\/em> number, starting at zero.<\/p>\n
index     0 1 2 3 4 5 6 7 8\nstring    A n d e r s o n !<\/pre>\n
Picking any single character:<\/h3>\n
\r\n#\r\nfirstLetter = string[0]\r\nsecondLetter = string[1]\r\n#\r\nlastLetter = string[-1]\r\n#<\/pre>\n
Picking several characters:<\/h3>\n
Give the index of the start letter, and the index of ending letter plus one.<\/p>\n
\r\n#\r\nletters2and3 = string[2:4]\r\nletters4to7 = string[4:8]\r\n#<\/pre>\n","protected":false},"excerpt":{"rendered":"
Concatenation Concatentation is joining strings together. The SQA will use ampersand (&), but Python uses plus (+) signs. # fullname = forename + ‘ ‘ + surname # String Length The len() function will return the number of characters in a string. # pin = input("Enter your PIN:") pinLength = len(pin) print(f"That has {pinLength} characters") # Characters and ASCII (for Higher) # # ord – returns the number representing the<\/p>\n
Read More<\/a><\/p>\n","protected":false},"author":7,"featured_media":0,"parent":294,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-93","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/blogs.glowscotland.org.uk\/sh\/ahscomputingpython\/wp-json\/wp\/v2\/pages\/93","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blogs.glowscotland.org.uk\/sh\/ahscomputingpython\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/blogs.glowscotland.org.uk\/sh\/ahscomputingpython\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/blogs.glowscotland.org.uk\/sh\/ahscomputingpython\/wp-json\/wp\/v2\/users\/7"}],"replies":[{"embeddable":true,"href":"https:\/\/blogs.glowscotland.org.uk\/sh\/ahscomputingpython\/wp-json\/wp\/v2\/comments?post=93"}],"version-history":[{"count":7,"href":"https:\/\/blogs.glowscotland.org.uk\/sh\/ahscomputingpython\/wp-json\/wp\/v2\/pages\/93\/revisions"}],"predecessor-version":[{"id":617,"href":"https:\/\/blogs.glowscotland.org.uk\/sh\/ahscomputingpython\/wp-json\/wp\/v2\/pages\/93\/revisions\/617"}],"up":[{"embeddable":true,"href":"https:\/\/blogs.glowscotland.org.uk\/sh\/ahscomputingpython\/wp-json\/wp\/v2\/pages\/294"}],"wp:attachment":[{"href":"https:\/\/blogs.glowscotland.org.uk\/sh\/ahscomputingpython\/wp-json\/wp\/v2\/media?parent=93"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}