mals14

JXA Resources

Revised: 2019-11-28 16:16 GMT-6

This is a list of the key resources I have found useful. If you know of others, please post in a comment below, and I will add to this list.

I have tried to order this list in the order that, to me, is best for learning JXA from scratch. We all learn a bit diferently, so adjust to suit your style/needs. Please post if you have suggestions on learning JXA.

mals14

// Click an OS X app sub-menu item
// 2nd argument is an array of arbitrary length (exact menu item labels, giving full path)

// e.g. menuItemClick("InqScribe", ['View', 'Aspect Ratio', 'Use Media Ratio'])

// Note that the menu path (spelling & sequence) must be exactly as in the app
// See menuItemTestClick() below for a slower version which reports any errors

// For OS X 10.10 Yosemite JXA JavaScript for Automation

mals14

// Click an OS X app sub-menu item
// 2nd argument is an array of arbitrary length (exact menu item labels, giving full path)

// e.g. menuItemClick("InqScribe", ['View', 'Aspect Ratio', 'Use Media Ratio'])

// Note that the menu path (spelling & sequence) must be exactly as in the app
// See menuItemTestClick() below for a slower version which reports any errors

// For macOS Yosemite to Sierra

mals14

I find list slices good for this:

>>> x = [1, 2, 3]
>>> a = x [1:2]
>>> a
[2]
>>> b = x [4:5]
>>> b
[]

mals14

How to Scroll a Page With JavaScript

Copied from: How to Scroll the Page With JavaScript Link

This page demonstrates how to use the JavaScript scrollBy and setTimeout methods to make a web page scroll down automatically. Change the timeout value to alter the scrolling speed in milliseconds. The example function below (arbitrarily called pageScroll) shows how this can work:

function pageScroll() {
    	window.scrollBy(0,50); // horizontal and vertical scroll increments
 scrolldelay = setTimeout('pageScroll()',100); // scrolls every 100 milliseconds

mals14

sourced from: What is the JavaScript version of sleep()? - Stack Overflow Link

function sleep(ms) {
  return new Promise(resolve => setTimeout(resolve, ms));
}

async function demo() {
  console.log('Taking a break...');
  await sleep(2000);
 console.log('Two seconds later, showing sleep in a loop...');

mals14

# example of how to insert a dictionary into sqlite database

# suorce - https://stackoverflow.com/questions/10913080/python-how-to-insert-a-dictionary-to-a-sqlite-database

def post_row(conn, tablename, rec):
    keys = ','.join(rec.keys())
    question_marks = ','.join(list('?'*len(rec)))
    values = tuple(rec.values())
    conn.execute('INSERT INTO '+tablename+' ('+keys+') VALUES ('+question_marks+')', values)

mals14

how to quote for command line usage - library support in python

• shlex — Simple lexical analysis — Python 3.8.3 documentation Link

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Sorting Lists of Dictionaries

Frequently you want to sort a list of dictionaries, based on some particular key.

Source: SortingListsOfDictionaries - Python Wiki Link

mals14

// javascript examples - select based on xpath and extract text value


var getXPath = '//div[contains(@class, "CopyToClipBoardInput")]/input';
var nodes = document.evaluate(getXPath, document, null, XPathResult.ANY_TYPE, null);
var getElem = nodes.iterateNext();
getElem.value // or is it getElem.valueOf


var getXPath = "//div[contains(@class, 'ContactInfoCallModal-phone')]//div";