I am trying to find a line of code in a folder and using the terminal. I use this command, which I think should work: where the folder I am inspecting is called “myWordpress”. But I get this: I don’t use much the terminal, so I am unsure as to how to do what I … Read more
If you want to know if key is a key in people, you can simply use the expression key in people, as in: And to test if it is not a key in people:
Just put this in your .vimrc
Judging from the existing answers, there seems to be a lot of confusion about this concept. The Problem Is Always a Graph The distinction between tree search and graph search is not rooted in the fact whether the problem graph is a tree or a general graph. It is always assumed you’re dealing with a … Read more
TLDR: ⌃⇧F on MacOS will open “Find in path” dialog. First of all, this IDEA has a nice “Find Usages” command. It can be found in the context menu, when the cursor is on some field, method, etc. It’s context-aware, and as far as I know, is the best way to find class, method or field … Read more
Update Now that the question scope has been corrected, I might add something in this regard as well: There are many comparisons between Apache Solr and ElasticSearch available, so I’ll reference those I found most useful myself, i.e. covering the most important aspects: Bob Yoplait already linked kimchy’s answer to ElasticSearch, Sphinx, Lucene, Solr, Xapian. Which fits for which usage?, … Read more
Assume I have this: and by searching “Pam” as name, I want to retrieve the related dictionary: {name: “Pam”, age: 7} How to achieve this ?
As Russel and Norvig point out in Artificial Intelligence: A Modern Approach (the most commonly used AI textbook) it is challenging to come up with a heuristic that is admissible but not consistent. Obviously, you can select values for nodes in a graph such that the heuristic they represent is admissible but not consistent. This … Read more
You can use this syntax: Also, inverse operator: It works fine for lists, tuples, sets and dicts (check keys). Note that this is an O(n) operation in lists and tuples, but an O(1) operation in sets and dicts.
You can do it using -v (for –invert-match) option of grep as: grep -v “unwanted_word” file will filter the lines that have the unwanted_word and grep XXXXXXXX will list only lines with pattern XXXXXXXX. EDIT: From your comment it looks like you want to list all lines without the unwanted_word. In that case all you need is: