sergioro9 · July 23, 2020 10:02
diff --git a/generic.js b/generic.js
 /*
 * Dowload all images in a site. I use it to download the first images for legendario.com
 * source: so/19830088/
 * example: downlaod free images from pixabar.com
 * output: directory in ~/Downloads
 */
 function getAllImages() {
  images = document.querySelectorAll("img");
  for (i of images) {
      var a = document.createElement('a');
      a.href = i.src;
      console.log(i);
      a.download = i.src;
      document.body.appendChild(a);
      a.click();
      document.body.removeChild(a);
  }
 }

 /*
 * general purpose functions
 */

 /*
 * find if an element exist in a page
 *
 * return: true if the element exists
 * param elm: string
 */
 isEmpty = (elm) => (elm.length ? true : false)

 /*
 * return an ordinal number as a string e.g. '2nd' or '3rd'
 * source: https://leancrew.com/all-this/2020/06/ordinal-numerals-and-javascript/
 * param n: integer
 */
 function ordinal(n) {
  var s = ["th", "st", "nd", "rd"];
  var v = n%100;
  return n + (s[(v-20)%10] || s[v] || s[0]);
 }

 /*
 * display the number of characaters in a textarea element
 * source: so/14086398
 * usage: displayCharacterLimitCount('#some-elm', '#other-elm')
 * param src: element for which the characters will be counted
 * param dest: element in which the characters will be displayed
 */
 function displayCharacterLimitCount(src, dest) {
  var msg = () => 'Characters: ' + $(src).val().length;
  $(dest).text(msg);
  $(src).keyup(function(){ $(dest).text(msg); });
 }

 /*
 * set multiple attributes
 * source: so/12274748
 * usage: setAttributes(elm, {"src": "example.com", "height": "100%", ...});
 */
 function setAttributes(elm, attrs) {
  for(var key in attrs) {
    elm.setAttribute(key, attrs[key]);
  }
 }


 /*
 * save current website in disk
 * source: so/27177661
 */
 function saveSite() {
  var htmlContent = ["your-content-here"];
  var bl = new Blob(htmlContent, {type: "text/html"});
  var a = document.createElement("a");
  a.href = URL.createObjectURL(bl);
  a.download = "your-download-name-here.html";
  a.hidden = true;
  document.body.appendChild(a);
  a.innerHTML = "something random - nobody will see this, it doesn't matter what you put here";
  a.click();
 }

 /*
 * concatenate and return the text of matching elements
 * usage: concatAll('.klass')
 * source: so/18949817
 */
 function concatAll(elm) {
  var elms = document.getElementsByClassName(elm);
  var result = "";
  for (var i = 0; i < elms.length; i++) {
    var price = result.concat(elms[i].value + "\n");
  }
  return result;
 }

 /*
 * get the number of sentences in an element by counting the number of dots
 * source: so/4009756
 */
 numberOfSentences = (elm) => (elm.textContent.match(/([.?!]\s|.$)/g) || [] ).length


 /*
 * get average number from of an array of numbers
 * source: so/29544371
 * examples:
 *  average(elms.map(elm => getNumberOfSentences(elm))) # get average number of sentences per paragraph
 */
 average = (arr) => arr.reduce((a, b) => a + b) / arr.length;
	/*
	* Dowload all images in a site. I use it to download the first images for legendario.com
	* source: so/19830088/
	* example: downlaod free images from pixabar.com
	* output: directory in ~/Downloads
	*/
	function getAllImages() {
	images = document.querySelectorAll("img");
	for (i of images) {
	var a = document.createElement('a');
	a.href = i.src;
	console.log(i);
	a.download = i.src;
	document.body.appendChild(a);
	a.click();
	document.body.removeChild(a);
	}
	}

	/*
	* general purpose functions
	*/

	/*
	* find if an element exist in a page
	*
	* return: true if the element exists
	* param elm: string
	*/
	isEmpty = (elm) => (elm.length ? true : false)

	/*
	* return an ordinal number as a string e.g. '2nd' or '3rd'
	* source: https://leancrew.com/all-this/2020/06/ordinal-numerals-and-javascript/
	* param n: integer
	*/
	function ordinal(n) {
	var s = ["th", "st", "nd", "rd"];
	var v = n%100;
	return n + (s[(v-20)%10] \|\| s[v] \|\| s[0]);
	}

	/*
	* display the number of characaters in a textarea element
	* source: so/14086398
	* usage: displayCharacterLimitCount('#some-elm', '#other-elm')
	* param src: element for which the characters will be counted
	* param dest: element in which the characters will be displayed
	*/
	function displayCharacterLimitCount(src, dest) {
	var msg = () => 'Characters: ' + $(src).val().length;
	$(dest).text(msg);
	$(src).keyup(function(){ $(dest).text(msg); });
	}

	/*
	* set multiple attributes
	* source: so/12274748
	* usage: setAttributes(elm, {"src": "example.com", "height": "100%", ...});
	*/
	function setAttributes(elm, attrs) {
	for(var key in attrs) {
	elm.setAttribute(key, attrs[key]);
	}
	}


	/*
	* save current website in disk
	* source: so/27177661
	*/
	function saveSite() {
	var htmlContent = ["your-content-here"];
	var bl = new Blob(htmlContent, {type: "text/html"});
	var a = document.createElement("a");
	a.href = URL.createObjectURL(bl);
	a.download = "your-download-name-here.html";
	a.hidden = true;
	document.body.appendChild(a);
	a.innerHTML = "something random - nobody will see this, it doesn't matter what you put here";
	a.click();
	}

	/*
	* concatenate and return the text of matching elements
	* usage: concatAll('.klass')
	* source: so/18949817
	*/
	function concatAll(elm) {
	var elms = document.getElementsByClassName(elm);
	var result = "";
	for (var i = 0; i < elms.length; i++) {
	var price = result.concat(elms[i].value + "\n");
	}
	return result;
	}

	/*
	* get the number of sentences in an element by counting the number of dots
	* source: so/4009756
	*/
	numberOfSentences = (elm) => (elm.textContent.match(/([.?!]\s\|.$)/g) \|\| [] ).length


	/*
	* get average number from of an array of numbers
	* source: so/29544371
	* examples:
	* average(elms.map(elm => getNumberOfSentences(elm))) # get average number of sentences per paragraph
	*/
	average = (arr) => arr.reduce((a, b) => a + b) / arr.length;