Things I learned this week - Week 46 (2022 ed.)

1. Is there a built-in way to loop through the properties of an object?

   Jan 30 '12 Comments: Answers: 8

   

   228

   

   Is there a Mustache / Handlebars way of looping through an object properties?

   So with

   var o = {
     bob : 'For sure'
     roger: 'Unknown',
     donkey: 'What an ass'
   }
   

   Can I then do something in the template engine that would be equivalent to

   for(var prop in o)
   {
       //

   …

   Open Full Question

2. Since 1.0.6, looping in two dimensional arrays using #each is broken #278

   

   naholyr posted on Jul 24, 2012

   I was using #each to browse an array of arrays (i.e. [[1, 2],[3,4]]).

   With this kind of template for example:

   <table>
   {{#each rows}}
   <tr>
     {{#each .}}<td>{{.}}</td>{{/each}}
   </tr>
   {{/each}}
   </table>

   Quite classical, and I find #each more explanatory than #. in this case, that's why I use it.

   It suddenly broke itself when updating today (from 1.0.5beta to 1.0.6).

   Sample code:

   var handlebars = require('handlebars')
   // Using each
   var each = handlebars.compile('{{#each arrays}} [ {{#each .}} ( {{.}} ) {{/each}} ] {{/each}}')
   // Using implicit loops
   var loop = handlebars.compile('{{#each arrays}} [ {{#.}} ( {{.}} ) {{/.}} ] {{/each}}')
   
   // In 1.0.5beta
   each({arrays:[[1, 2, 3], [4, 5, 6], [7, 8, 9]]}) === ' [  ( 1 )  ( 2 )  ( 3 )  ]  [  ( 4 )  ( 5 )  ( 6 )  ]  [  ( 7 )  ( 8 )  ( 9 )  ] '
   loop({arrays:[[1, 2, 3], [4, 5, 6], [7, 8, 9]]}) === ' [  ( 1 )  ( 2 )  ( 3 )  ]  [  ( 4 )  ( 5 )  ( 6 )  ]  [  ( 7 )  ( 8 )  ( 9 )  ] '
   
   // In 1.0.6
   each({arrays:[[1, 2, 3], [4, 5, 6], [7, 8, 9]]}) === ' [  ]  [  ]  [  ] ' // DAFUQ ??
   loop({arrays:[[1, 2, 3], [4, 5, 6], [7, 8, 9]]}) === ' [  ( 1 )  ( 2 )  ( 3 )  ]  [  ( 4 )  ( 5 )  ( 6 )  ]  [  ( 7 )  ( 8 )  ( 9 )  ] '

   No PR attached sorry, no time to dig in the code right now

   View on GitHub
3. nodejs xlsx module leading 0
   How to convert cell type number to string in XLSX? For Handling Date format

   Sep 24 '20 Comments: 1 Answers: 1

   

   0

   

   I'm using npm i xlsx for reading xlsx file. so my questions here ... in my xlsx sheet i given Indian standard date (DD/MM/YYYY) like 24/09/2020 so it's giving same value... if I give 03/09/2020 it's giving number 43898 like this. set cellDates:true it's giving 2020-03-09T00:00:00.000Z so here date take…

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4. snyk.io
5. 

   xlsx.utils JavaScript and Node.js code examples | Tabnine

   var rng = xlsx.utils.decode_range(range);... var c = typeof cell === 'string' ? xlsx.utils.decode_cell(cell) : cell;... return xlsx.utils.encode_range(rng);

   tabnine.com

6. Vuex - State Management