So, I have been looking for a job for quite a while now, and have had some interviews. Thus far, I have not been successful, though.<\/p>\n
I just had an interview, where I was asked to solve some things during the interview. Here are some of the questions that I didn’t have an answer to, from the top of my head.<\/p>\n
“In I later checked the solution I was starting to form in my head: “What does “How do you combine two lists in Javascript or Python”. This was not an acceptable solution, and we broke off the interview at this point.<\/p>\n When did some searches. I saw, I should have simply tried the It is worrisome, that my memories of some of the basic things are so sketchy, I need to shape up, to call myself senior in any language. Maybe I should stop looking at more different languages (I am currently working my way through SICP<\/a> - Structure and Interpretation of Computer Programs), and focus on some languages that I would like to work in. So, I have been looking for a job for quite a while now, and have had some interviews. Thus far, I have not been successful, though. I just had an interview, where I was asked to solve some things during the interview. Here are some of the questions that I didn’t have an answer to, … Continue reading “What does it mean to be a Senior Developer?”<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"_links":{"self":[{"href":"https:\/\/www.hestben.se\/HestbenTechnical\/index.php?rest_route=\/wp\/v2\/posts\/91"}],"collection":[{"href":"https:\/\/www.hestben.se\/HestbenTechnical\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.hestben.se\/HestbenTechnical\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.hestben.se\/HestbenTechnical\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.hestben.se\/HestbenTechnical\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=91"}],"version-history":[{"count":7,"href":"https:\/\/www.hestben.se\/HestbenTechnical\/index.php?rest_route=\/wp\/v2\/posts\/91\/revisions"}],"predecessor-version":[{"id":98,"href":"https:\/\/www.hestben.se\/HestbenTechnical\/index.php?rest_route=\/wp\/v2\/posts\/91\/revisions\/98"}],"wp:attachment":[{"href":"https:\/\/www.hestben.se\/HestbenTechnical\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=91"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.hestben.se\/HestbenTechnical\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=91"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.hestben.se\/HestbenTechnical\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=91"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}Bash<\/code>, change mode of all jpg-files in the current directory, and sub directories”.
\nHere, I was first thinking about how to setup the for<\/code>-loop in bash. There is the do<\/code>, and done<\/code>, and somewhere, you need a semicolon.
\nI also started to think about using find<\/code>, but was not sure if I needed the flag in xargs<\/code> to limit the output to one entry per line. While I was contemplating, the interviewer asked how much I had done in Bash<\/code>, and I said, I mostly did small build scripts. And then he asked about Makefile<\/code>, so we skipped the first question.<\/p>\n
\nfind . -iname *.jpg | xargs chmod 600<\/code>
\nThat would have worked.<\/p>\n.PHONY<\/code> in a Makefile<\/code> mean?”
\nI have seen it often, but never looked it up.
\nNow, I have found that it is a directive you put in a Makefile<\/code>, that is always dirty, thus is always built. This is mostly used for clean<\/code> and all<\/code>. A Makefile<\/code> always has a target, and clean<\/code> and all<\/code> are used for cleaning up the build (remove all built binaries and libraries), and to make all projects. If you then have a file in the directory that is called clean<\/code> or all<\/code>, it becomes ambiguous for make<\/code>, if you want to build the file clean<\/code> or if you want to clean up the build. That’s why you setup a .PHONY<\/code> directive.<\/p>\n
\nThis, I should have known. But I guess it is something that I missed by not doing a proper course in Python, or I have simply forgot it. I hate it when I forget the elementary things. I don’t know how often I have to lookup “Hello world” in languages I have used before, because I have forgotten how to start a simple project, or how to output text to command line.
\nThe more detailed question:
\n“You have:
\na=[1,2,3]
\nb=[4,5,6]<\/code>
\nHow do you create
\nc=[1,2,3,4,5,6]<\/code>?”
\nI quick-and-dirty-solved it in Python like this:
\nc=[]
\nfor x in a:
\n c.append(x)
\nfor x in b:
\n c.append(x)<\/code><\/p>\n+<\/code>-operator:
\nc=a+b<\/code>
\nIn other languages:
\nIn Javascript, you can use concat<\/code>.
\nc=a.concat(b);<\/code>
\nIn C\/C++, first C-arrays:
\n\/\/How do you concatenate c arrays?
\nint a[3]={1,2,3};
\nint b[3]={4,5,6};
\nint c[6];
\n\/\/ You actually don't need to specify the size of the
\n\/\/ array,
\n\/\/ if it is initialized with the {} notation,
\n\/\/ the compiler can infer it:
\nint d[]={1,2};
\n\/\/Need to loop through a and b to fill c, and for this,
\n\/\/ need to
\n\/\/ specifically know the sizes of the arrays
\nconst int size1=3;
\nconst int size2=3;
\nfor(int i=0; i < size1; i++)\n{\n\tc[i] = a[i];\n}\nfor(int i=0; i < size2; i++)\n{\n\tc[i+size1]=b[i];\n}<\/code>
\nIn C++:
\n\/\/ In C++, you should use std::vector
\nstd::vector
\na_vec.push_back(1);
\na_vec.push_back(2);
\na_vec.push_back(3);
\n\/\/ In C++ 11, you can use the array initialization as
\n\/\/ well:
\nstd::vector
\nstd::vector
\nc_vec.insert(c_vec.end(), a_vec.begin(), a_vec.end());
\nc_vec.insert(c_vec.end(), b_vec.begin(), b_vec.end());<\/code><\/p>\n
\nOther resources that deal with what it means to be \"Senior Developer\": The programmer competence matrix<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"