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Convert char to int in C and C++

... Well, in ASCII code, the numbers (digits) start from 48. All you need to do is: int x = (int)character - 48; Or, since the character '0' has the ASCII code of 48, you can just write: int x = character - '0'; // The (int) cast is not necessary. ...
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How do I inspect the view hierarchy in iOS?

... I've got: error: cannot find interface declaration for '$__lldb_objc_class' any ideas? (lldb) po [[UIWindow keyWindow] recursiveDescription] error: cannot find interface declaration for '$__lldb_objc_class' error: cannot find interface declaration for '$__lldb_objc_class' error:...
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JavaScript object: access variable property by name as string [duplicate]

...racket notation. If you NEED a function for it, here it is: function read_prop(obj, prop) { return obj[prop]; } To answer some of the comments below that aren't directly related to the original question, nested objects can be referenced through multiple brackets. If you have a nested objec...
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What is the use for Task.FromResult in C#

In C# and TPL ( Task Parallel Library ), the Task class represents an ongoing work that produces a value of type T. 6 Ans...
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How to convert Set to Array?

...y good way to get properties, except for generator [Set].values, which is called in an awkward way of mySet.values.next() . ...
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How can I select and upload multiple files with HTML and PHP, using HTTP POST?

...nctype="multipart/form-data"> <input type="file" name="my_file[]" multiple> <input type="submit" value="Upload"> </form> <?php if (isset($_FILES['my_file'])) { $myFile = $_FILES['my_file']; $f...
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Loading local JSON file

... Are you really allowed to access a local file? – maasha Nov 21 '12 at 19:21 4 ...
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Unable to generate an explicit migration in entity framework

...the database OR you can delete the pending migration file ([201203170856167_left]) from your Migrations folder and then re-run "add-migration" to create a brand new migration based off of your edits. share | ...
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How to check for null in Twig?

... Notice: as Twig 2.x check for variable is equal to value like is_ sameas must be {% if var is same as(false) %} not {% if var is sameas(false) %} see Doc url => twig.symfony.com/doc/2.x/tests/sameas.html – ahmed hamdy Jul 15 '19 at 17:01 ...
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How to initialize std::vector from C-style array?

... Don't forget that you can treat pointers as iterators: w_.assign(w, w + len); share | improve this answer | follow | ...