helper

问题 I am trying to follow along with a project written by Mike Smales - "Sound Classification using Deep Learning". In there, the author wrote a helper file called wavfilehelper.py: wavehelper.py Code import struct class WavFileHelper(): def read_file_properties(self, filename): wave_file = open(filename,"rb") riff = wave_file.read(12) fmt = wave_file.read(36) num_channels_string = fmt[10:12] num_channels = struct.unpack('<H', num_channels_string)[0] sample_rate_string = fmt[12:16] sample_rate =

问题 pg-promise helpers : optionnal fields in insert and multiple-update I have some question about non-required fields for insert and update statement INSERT STATEMENT With this post I defined a ColumnSet that contains optionals fields ( stype , sspeed , disup ). It works but I just want to know a little detail: You can see that the ColumnSet define the value of state as "false" if the object don't have the property. In the database the field "disup" is defined to "false" as default, so do I

来源： https://stackoverflow.com/questions/49960278/cant-access-array-element-after-calling-helper-handlebars

问题 I have been trying to limit my blog content text with str_limit that works fine until I apply limit of characters on it. kindly see what is missing in the code of my blade file: {!! str_limit($blog->content) !!} works fine with the default limit, showing limited text on the view. But when I apply any custom limit i.e. {!! str_limit($blog->content, 20) !!} it do not show any text on the view. 回答1: The str_limit function has been deprecated, but you can use Str::limit($text) Laravel doc. In the

问题 When I'm trying to install any package using pip it gives an error. It shows "ImportError: No module named helpers" . I tried installing the helpers module using pip but the same error occurred. I'm pasting the output of the error message. Operating System: Arch Linux. pip2 install requests Error : Traceback (most recent call last): File "/usr/bin/pip2", line 11, in <module> load_entry_point('pip==18.1', 'console_scripts', 'pip')() File "/usr/lib/python2.7/site-packages/pkg_resources/__init__

问题 I have some data, stored in Column A and column B. For each row, I would like to get the difference between the values in column A and column B. I.e. cells(1,2) - cells(1,1), so on so forth for the rest of rows. The second step is to determine if the difference on i row was the max of the preceeding nth rows. With helper column, I can do it with formula or with code like this. for i = 1 to LR cells(i,3) = cells(i,2) - cells(i,1) next i for i = 1 to LR if cells(i,3) = .max(range(cells(i-19,3)

问题 I'm trying to use a block in a helper, but that's giving me this error: SyntaxError - syntax error, unexpected ')' ...rbout.concat(( green_title do ).to_s); _erbout.concat "\n ... ... ^ (erb):4254: syntax error, unexpected end-of-input, expecting ')' ; _erbout.force_encoding(__ENCODING__) ^: (erb):1649:in `' here's how I'm calling it: <%= green_title do %> text <% end %> and here's my helper: def green_title(&block) capture do concat content_tag(:h3) do yeld end end end 回答1: Your block is

问题 I'm trying to use a block in a helper, but that's giving me this error: SyntaxError - syntax error, unexpected ')' ...rbout.concat(( green_title do ).to_s); _erbout.concat "\n ... ... ^ (erb):4254: syntax error, unexpected end-of-input, expecting ')' ; _erbout.force_encoding(__ENCODING__) ^: (erb):1649:in `' here's how I'm calling it: <%= green_title do %> text <% end %> and here's my helper: def green_title(&block) capture do concat content_tag(:h3) do yeld end end end 回答1: Your block is

问题 I'm trying to use a block in a helper, but that's giving me this error: SyntaxError - syntax error, unexpected ')' ...rbout.concat(( green_title do ).to_s); _erbout.concat "\n ... ... ^ (erb):4254: syntax error, unexpected end-of-input, expecting ')' ; _erbout.force_encoding(__ENCODING__) ^: (erb):1649:in `' here's how I'm calling it: <%= green_title do %> text <% end %> and here's my helper: def green_title(&block) capture do concat content_tag(:h3) do yeld end end end 回答1: Your block is

问题 I'm trying to use a block in a helper, but that's giving me this error: SyntaxError - syntax error, unexpected ')' ...rbout.concat(( green_title do ).to_s); _erbout.concat "\n ... ... ^ (erb):4254: syntax error, unexpected end-of-input, expecting ')' ; _erbout.force_encoding(__ENCODING__) ^: (erb):1649:in `' here's how I'm calling it: <%= green_title do %> text <% end %> and here's my helper: def green_title(&block) capture do concat content_tag(:h3) do yeld end end end 回答1: Your block is