3 examples of 'remove readonly attribute jquery' in JavaScript

386
setReadOnly(el: Element, readonly: boolean): void {
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  const cl = el.classList;
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  (readonly ? cl.add : cl.remove).call(cl, "_readonly");
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}

4
function readonly(elements, selector, parent)
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{
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    control.call(this, elements, selector, parent);
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    Object.defineProperty(this, "__elements", {value: Array.prototype.slice.call(parent.__element.querySelectorAll(selector)), configurable: true});
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    this.__binder.defineDataProperties(this,
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    {
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        attributes:         
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        {
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            get:    function(){return this.__attributes;}, 
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            set:    function(value)
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            {
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                if (value!==undefined&&value.isObserver) value=value(); 
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                this.__attributes=value;
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                if (value!==undefined)
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                for(var key in value)
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                {
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                    each(this.__elements, function(element){element.setAttribute("data-"+key, value[key]);});
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                    this.__element.setAttribute("data-" + key, value[key]);
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                }
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            }
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        },
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        disabled:           {get: function(){return this.__element.disabled;},              set: function(value){each(this.__elements, function(element){element.disabled = !(!value);}); this.__element.disabled=!(!value);}},
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        display:            {get: function(){return this.__element.style.display=="";},     set: function(value){this[value?"show":"hide"]();}},
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        enabled:            {get: function(){return !this.__element.disabled;},             set: function(value){each(this.__elements, function(element){element.disabled = !value;}); this.__element.disabled=!value;}},
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        tooltip:            {get: function(){return this.__element.title;},                 set: function(value){var val = value&&value.isObserver?value():(value||""); each(this.__elements, function(element){element.title = val;}); this.__element.title = val;}},
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        value:              {get: function(){return this.__element.innerHTML;},             set: function(value){var val = value&&value.isObserver?value():value; each(this.__elements, function(element){element.innerHTML = val;}); this.__element.innerHTML = val;}}
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    });
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}

79
var toggleReadOnly = function toggleReadOnly(target, value) {
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  if (value === undefined) {
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    value = !target.hasAttribute('readonly');
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  }
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  if (value) {
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    setReadOnly(target);
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  } else {
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    unsetReadOnly(target);
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  }
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};