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You can select on any attribute and its value by using the attribute selector [attributename=optionalvalue], so in your case you can select the option and set the selected attribute. $("div.id_100 > select > option[value=" + value + "]").prop("selected",true); Where value is the value you wish to select by.
10 de jul. de 2009 · In summary, if you can't select by Name, either use a complicated jQuery selector and accept any related performance hit or use Class selectors. You can always limit the jQuery scope by including the table name i.e. $('#tableID > .bold') That should restrict jQuery from searching the "world".
6 de nov. de 2014 · It's good practice to cache your selectors so jquery doesn't need to traverse the DOM more than it needs to. Lastly when comparing two values you should try to make sure they are the same type, in this case seatsVal is a string so in order to properly compare it to 99999 you should use parseInt() on it.
1 de nov. de 2011 · You don't even need jQuery for that (i.e. elem.checked) or you can use $(elem).prop("checked") if you want to rely on jQuery. If you need to know (or compare with) the value when the element was first loaded (i.e. the default value) the correct way to do this, is elem.getAttribute("checked") or elem.prop("defaultChecked") .
1 de ago. de 2017 · En cualquier versión de jQuery Siempre se puede confiar en el objeto actual del DOM y es probablemente un poco más rápido que las otras dos opciones si sólo se trata de un elemento: // assuming an event handler thus 'this' this.disabled = true;
10 de feb. de 2021 · Also, if you work with data attributes a lot in your jQuery scripts, you might want to consider using the HTML5 custom data attributes plugin. This allows you to write even more readable code by using .dataAttr('foo'), and results in a smaller file size after minification (compared to using .attr('data-foo')).
8 de may. de 2016 · val () returns the value of the <select> element, i.e. the value attribute of the selected <option> element. Since you actually want the inner text of the selected <option> element, you should match that element and use text () instead: var nationality = $("#dancerCountry option:selected").text(); answered Jul 15, 2011 at 12:20. Frédéric Hamidi.
11 de dic. de 2008 · For example jQuery 1.9.1 uses this pattern 43 times, and the JSHint syntax checker even provides the eqnull relaxing option for this reason. From the jQuery style guide: Strict equality checks (===) should be used in favor of ==. The only exception is when checking for undefined and null by way of null.
12 de sept. de 2009 · If you are using jQuery 1.7 or higher version then use prop(), instead of attr(). $("#txtName").prop("disabled", "disabled"); If you wish to enable any element then you just have to do opposite of what you did to make it disable. However jQuery provides another way to remove any attribute. Approach 1 $("#txtName").attr("disabled", false ...
The solutions so far require you to know the ID of the form. Use this code to submit the form without needing to know the ID: function handleForm(field) {. $(field).closest("form").submit(); } For example if you were wanting to handle the click event for a button, you could use. $("#buttonID").click(function() {.
