ECMAScript 2018 (ES9)
ES9 provides syntactic support for asynchronous iteration - synchronous iterators and asynchronous iterables, which is just like regular iterators, except that they have a next() method that returns in Promise.
Array.map vs Array.forEach
forEach can be used just like a traditional 'for loop' that iterates each of the array element once.
How to stop an event propagation in javascript?
You can stop the event propagation by doing this – function stopEventPropagation(event) { if (event.stopPropagation) { event.stopPropagation(); // W3C model } else { event.cancelBubble = true; // IE model } } Advertisements
How to get XML string in javascript?
Here is the function: function getXmlString(xmlDoc) { try { return ((new XMLSerializer()).serializeToString(xmlDoc)); } catch (e) { try { // Internet Explorer. return (xmlDoc.xml); } catch (e) { //Strange Browser ?? return (‘Xmlserializer not supported’); } } }
How to apply xml to xslt in javascript?
Here is the function: function transFormXml(xmlData, xsltData) { try { try { return xmlData.transformNode(xsltData); } catch (e) { var xsltProcessor = new XSLTProcessor(); xsltProcessor.importStylesheet(xsltData); return getXmlString(xsltProcessor.transformToFragment(xmlData, document)); } } catch (e) { alert(e); } return null; }
How to get time zone offset in javascript?
Here is the function: function getTimeZoneOffset() { var currentDate = new Date(); var date1 = new Date(currentDate.getFullYear(), 0, 1, 0, 0, 0, 0); var temp = date1.toGMTString(); var date3 = new Date(temp.substring(0, temp.lastIndexOf(” “))); var hoursDiffStdTime = ((date1 – date3) / (1000 * 60 * 60)) * 60; return hoursDiffStdTime; } And if you want to get the offset with daylight saving then look at the below function: function getTimeZoneOffsetDayLightSaving() { var currentDate = new Date(); var date2 = new Date(currentDate.getFullYear(), 6, 1, 0, 0, 0, 0); var temp = date2.toGMTString(); var date4 = new Date(temp.substring(0, temp.lastIndexOf(” “))); var hoursDiffDaylightTime = ((date2 – date4) / (1000 * 60 * 60)) * 60; return hoursDiffDaylightTime; }
How to allow numbers, dot and comma in a text box in Javascript?
Here is the function: function valid(field) { var re = /\d*\.\,/; if (!re.test(field.value)) { alert(“Only numbers, dot and comma are allowed!”); } }
