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Debugger tools

Debuggers and icons meaning.

Edge/Blink

1. Resume script execution until the next breakpoint if any
2. Step over line of code
3. Step into line of code

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Draft for Issue 152

User Agent Detection Use Cases

Before being able to freeze and reduce parts of the browser User Agent string, we need to clearly lay down the different ways the user agent strings is being used on the Web by users and developers.

The User Agent String detection is the mechanism by which a piece of software will change its behavior according to the interpretation of the value of the User Agent String.

User Agent Strings Scope

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      // convert from date string to date object
      function convert_to_date(date_str) {
        var timestamp = Date.parse(date_str);
        var date_obj = new Date(timestamp);
        return date_obj;
      }
      // Create a label string of two dates for each week starting with the beginning date.
      function make_labels(date_start) {
        var date_obj = date_start.timestamp;
        date_str_start = date_obj.toLocaleDateString("en-US", date_options);

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	(function (containerId, opts) {
		if (!('querySelector' in document)) return;
		var container = document.getElementById(containerId);
		var nameSpace = opts.namespace || '';
		var onResize = throttle(update, 200);
		var waiting = !!window.IntersectionObserver;
		var observer;
		update();

		document.addEventListener('DOMContentLoaded', update);

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products = """A,10,20
B,50,30
C,10,10
D,50,40
E,60,10"""

product_lines = [product.split(',') for product in products.splitlines()]
# sorting by INCREASING price 
per_price = sorted(product_lines, key = lambda product: product[2])
# [['C', '10', '10'], ['E', '60', '10'], ['A', '10', '20'], ['B', '50', '30'], ['D', '50', '40']]

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With lxml 4.5.0

❯ python
Python 3.9.1 (default, Feb  5 2021, 17:04:50) 
[Clang 12.0.0 (clang-1200.0.32.29)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> from lxml import etree
>>> from io import StringIO
>>> etree.parse(StringIO('<h2>👺</h2>'))

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<div class="news-entry__item-content"><p><span class="word trans-in onscreen" style="transition-delay: 0.03s;">Waste</span> <span class="word trans-in onscreen" style="transition-delay: 0.06s;">continues</span> <span class="word trans-in onscreen" style="transition-delay: 0.09s;">to</span> <span class="word trans-in onscreen" style="transition-delay: 0.12s;">be</span> <span class="word trans-in onscreen" style="transition-delay: 0.15s;">high</span> <span class="word trans-in onscreen" style="transition-delay: 0.18s;">on</span> <span class="word trans-in onscreen" style="transition-delay: 0.21s;">the</span> <span class="word trans-in onscreen" style="transition-delay: 0.24s;">agenda</span> <span class="word trans-in onscreen" style="transition-delay: 0.27s;">for</span> <span class="word trans-in onscreen" style="transition-delay: 0.3s;">Asda</span> <span class="word trans-in onscreen" style="transition-delay: 0.33s;">particularly</span> <span class="word trans-in onscreen" style="transition-delay: 0.36s;">with

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from datetime import datetime
from glob import glob
import locale
import re
from textwrap import dedent

import mistune
from PIL import Image

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 ./mach build
ERROR:root:code for hash md5 was not found.
Traceback (most recent call last):
  File "/usr/local/Cellar/python@2/2.7.15_1/Frameworks/Python.framework/Versions/2.7/lib/python2.7/hashlib.py", line 147, in <module>
    globals()[__func_name] = __get_hash(__func_name)
  File "/usr/local/Cellar/python@2/2.7.15_1/Frameworks/Python.framework/Versions/2.7/lib/python2.7/hashlib.py", line 97, in __get_builtin_constructor
    raise ValueError('unsupported hash type ' + name)
ValueError: unsupported hash type md5
ERROR:root:code for hash sha1 was not found.
Traceback (most recent call last):