SysBlog » JavaScript

jQuery – set option by value

SysBlog — Tue, 31 Mar 2020 11:03:03 +0000

$('.selDiv option[value="SEL1"]').prop('selected', true)

source: https://stackoverflow.com/questions/314636/how-do-you-select-a-particular-option-in-a-select-element-in-jquery

JavaScript: Difference between two dates in days

SysBlog — Sun, 01 Mar 2020 06:55:25 +0000


var date_diff_indays = function(date1, date2) {
dt1 = new Date(date1);
dt2 = new Date(date2);
return Math.floor((Date.UTC(dt2.getFullYear(), dt2.getMonth(), dt2.getDate()) - Date.UTC(dt1.getFullYear(), dt1.getMonth(), dt1.getDate()) ) /(1000 * 60 * 60 * 24));
}

SOURCE: https://www.w3resource.com/javascript-exercises/javascript-date-exercise-8.php

jQuery – replace one element with another

SysBlog — Wed, 27 Nov 2019 14:29:14 +0000

$("#element_1").replaceWith("123");

JavaScript – string to boolean

SysBlog — Mon, 14 Oct 2019 07:41:49 +0000

var isTrueSet = (myValue == 'true');

jQuery – get checked radio button by class

SysBlog — Wed, 11 Sep 2019 13:50:27 +0000

element = $("input:radio.someClass:checked");
value = $("input:radio.someClass:checked").val();

jQuery: find element by text

SysBlog — Thu, 29 Aug 2019 13:28:16 +0000

This is a test
Another Div

$('div:contains("Another")').css('background-color', 'red');

jquery – get option by data attribute

SysBlog — Fri, 04 Jan 2019 15:26:19 +0000

Get option with attribute data-lang=’en’:


var $myDDL = $('#dropDownList');

var $mySelectedOption = $('option[data-lang="en"]',$myDDL);

get value and text:


var myValue = $mySelectedOption.val();

var myText = $mySelectedOption.text();

jquery – get value and text from selected option

SysBlog — Fri, 04 Jan 2019 15:21:31 +0000


var $myDDL = $('#dropDownList');

var myValue = $('option:selected', 	$myDDL).val();

var myText = $('option:selected', $myDDL).text();

Javascript: length broja

SysBlog — Tue, 20 Feb 2018 20:02:39 +0000

Problem:

var x = 123;

Zanima nas length varijable x.

Rješenje:

var x = 123;
x.toString().length;

jQuery: selekcija teksta iz dropdown liste

SysBlog — Wed, 12 Jul 2017 11:55:57 +0000

Rješenje:


$("#lista option:selected").text();