我试图在我的项目中使用此插件：http://rvera.github.io/image-picker/但它没有显示图像，但它只显示了选择选项框。还有什么我在javascript中作为新手缺少的吗？ 编辑：应该添加我的代码：
HTML ：
<div class="picker" hidden>
<select class="image-picker show-html">
<option value=""></option>
<option data-img-src="http://placekitten.com/300/200" value="1">Cute Kitten 1</option>
<option data-img-src="http://placekitten.com/150/200" value="2">Cute Kitten 2</option>
<option data-img-src="http://placekitten.com/400/200" value="3">Cute Kitten 3</option>
</select>
</div>
<div class="item">
<select class="row kittens">
<div class="col-md-3"><option data-img-src="http://placekitten.com/300/200" value="1">Cute Kitten 1</option></div>
<div class="col-md-3"><option data-img-src="http://placekitten.com/150/200" value="2">Cute Kitten 2</option></div>
<div class="col-md-3"><option data-img-src="http://placekitten.com/400/200" value="3">Cute Kitten 3</option></div>
<div class="col-md-3"><a href="#" class="thumbnail"><img src="http://placehold.it/250x250" alt="Image" style="max-width:100%;"></a></div>
</select><!--.row-->
</div><!--.item-->
javascript：我在image-picker.js中添加了插件代码，然后在下面*
$(function(){
$( document ).ready(function() {
$("select").imagepicker({
show_label : true
})
$(".kittens").imagepicker({
show_label : true
})
});
});
在你们的帮助下，从控制台发现错误
(function() {
var ImagePicker, ImagePickerOption, both_array_are_equal, sanitized_options,
bind = function(fn, me){ return function(){ return fn.apply(me, arguments); }; },
indexOf = [].indexOf || function(item) { for (var i = 0, l = this.length; i < l; i++) { if (i in this && this[i] === item) return i; } return -1; };
//console said error found from this first line below and another error is found in the last line "}).call(this);"
jQuery.fn.extend({
imagepicker: function(opts) {
if (opts == null) {
opts = {};
}
return this.each(function() {
var select;
select = jQuery(this);
if (select.data("picker")) {
select.data("picker").destroy();
}
select.data("picker", new ImagePicker(this, sanitized_options(opts)));
if (opts.initialized != null) {
return opts.initialized.call(select.data("picker"));
}
});
}
});
sanitized_options = function(opts) {
var default_options;
default_options = {
hide_select: true,
show_label: false,
initialized: void 0,
changed: void 0,
clicked: void 0,
selected: void 0,
limit: void 0,
limit_reached: void 0
};
return jQuery.extend(default_options, opts);
};
both_array_are_equal = function(a, b) {
var i, j, len, x;
if ((!a || !b) || (a.length !== b.length)) {
return false;
}
a = a.slice(0);
b = b.slice(0);
a.sort();
b.sort();
for (i = j = 0, len = a.length; j < len; i = ++j) {
x = a[i];
if (b[i] !== x) {
return false;
}
}
return true;
};
ImagePicker = (function() {
function ImagePicker(select_element, opts1) {
this.opts = opts1 != null ? opts1 : {};
this.sync_picker_with_select = bind(this.sync_picker_with_select, this);
this.select = jQuery(select_element);
this.multiple = this.select.attr("multiple") === "multiple";
if (this.select.data("limit") != null) {
this.opts.limit = parseInt(this.select.data("limit"));
}
this.build_and_append_picker();
}
ImagePicker.prototype.destroy = function() {
var j, len, option, ref;
ref = this.picker_options;
for (j = 0, len = ref.length; j < len; j++) {
option = ref[j];
option.destroy();
}
this.picker.remove();
this.select.off("change", this.sync_picker_with_select);
this.select.removeData("picker");
return this.select.show();
};
ImagePicker.prototype.build_and_append_picker = function() {
if (this.opts.hide_select) {
this.select.hide();
}
this.select.on("change", this.sync_picker_with_select);
if (this.picker != null) {
this.picker.remove();
}
this.create_picker();
this.select.after(this.picker);
return this.sync_picker_with_select();
};
ImagePicker.prototype.sync_picker_with_select = function() {
var j, len, option, ref, results;
ref = this.picker_options;
results = [];
for (j = 0, len = ref.length; j < len; j++) {
option = ref[j];
if (option.is_selected()) {
results.push(option.mark_as_selected());
} else {
results.push(option.unmark_as_selected());
}
}
return results;
};
ImagePicker.prototype.create_picker = function() {
this.picker = jQuery("<ul class='thumbnails image_picker_selector'></ul>");
this.picker_options = [];
this.recursively_parse_option_groups(this.select, this.picker);
return this.picker;
};
ImagePicker.prototype.recursively_parse_option_groups = function(scoped_dom, target_container) {
var container, j, k, len, len1, option, option_group, ref, ref1, results;
ref = scoped_dom.children("optgroup");
for (j = 0, len = ref.length; j < len; j++) {
option_group = ref[j];
option_group = jQuery(option_group);
container = jQuery("<ul></ul>");
container.append(jQuery("<li class='group_title'>" + (option_group.attr("label")) + "</li>"));
target_container.append(jQuery("<li class='group'>").append(container));
this.recursively_parse_option_groups(option_group, container);
}
ref1 = (function() {
var l, len1, ref1, results1;
ref1 = scoped_dom.children("option");
results1 = [];
for (l = 0, len1 = ref1.length; l < len1; l++) {
option = ref1[l];
results1.push(new ImagePickerOption(option, this, this.opts));
}
return results1;
}).call(this);
results = [];
for (k = 0, len1 = ref1.length; k < len1; k++) {
option = ref1[k];
this.picker_options.push(option);
if (!option.has_image()) {
continue;
}
results.push(target_container.append(option.node));
}
return results;
};
ImagePicker.prototype.has_implicit_blanks = function() {
var option;
return ((function() {
var j, len, ref, results;
ref = this.picker_options;
results = [];
for (j = 0, len = ref.length; j < len; j++) {
option = ref[j];
if (option.is_blank() && !option.has_image()) {
results.push(option);
}
}
return results;
}).call(this)).length > 0;
};
ImagePicker.prototype.selected_values = function() {
if (this.multiple) {
return this.select.val() || [];
} else {
return [this.select.val()];
}
};
ImagePicker.prototype.toggle = function(imagepicker_option, original_event) {
var new_values, old_values, selected_value;
old_values = this.selected_values();
selected_value = imagepicker_option.value().toString();
if (this.multiple) {
if (indexOf.call(this.selected_values(), selected_value) >= 0) {
new_values = this.selected_values();
new_values.splice(jQuery.inArray(selected_value, old_values), 1);
this.select.val([]);
this.select.val(new_values);
} else {
if ((this.opts.limit != null) && this.selected_values().length >= this.opts.limit) {
if (this.opts.limit_reached != null) {
this.opts.limit_reached.call(this.select);
}
} else {
this.select.val(this.selected_values().concat(selected_value));
}
}
} else {
if (this.has_implicit_blanks() && imagepicker_option.is_selected()) {
this.select.val("");
} else {
this.select.val(selected_value);
}
}
if (!both_array_are_equal(old_values, this.selected_values())) {
this.select.change();
if (this.opts.changed != null) {
return this.opts.changed.call(this.select, old_values, this.selected_values(), original_event);
}
}
};
return ImagePicker;
})();
ImagePickerOption = (function() {
function ImagePickerOption(option_element, picker, opts1) {
this.picker = picker;
this.opts = opts1 != null ? opts1 : {};
this.clicked = bind(this.clicked, this);
this.option = jQuery(option_element);
this.create_node();
}
ImagePickerOption.prototype.destroy = function() {
return this.node.find(".thumbnail").off("click", this.clicked);
};
ImagePickerOption.prototype.has_image = function() {
return this.option.data("img-src") != null;
};
ImagePickerOption.prototype.is_blank = function() {
return !((this.value() != null) && this.value() !== "");
};
ImagePickerOption.prototype.is_selected = function() {
var select_value;
select_value = this.picker.select.val();
if (this.picker.multiple) {
return jQuery.inArray(this.value(), select_value) >= 0;
} else {
return this.value() === select_value;
}
};
ImagePickerOption.prototype.mark_as_selected = function() {
return this.node.find(".thumbnail").addClass("selected");
};
ImagePickerOption.prototype.unmark_as_selected = function() {
return this.node.find(".thumbnail").removeClass("selected");
};
ImagePickerOption.prototype.value = function() {
return this.option.val();
};
ImagePickerOption.prototype.label = function() {
if (this.option.data("img-label")) {
return this.option.data("img-label");
} else {
return this.option.text();
}
};
ImagePickerOption.prototype.clicked = function(event) {
this.picker.toggle(this, event);
if (this.opts.clicked != null) {
this.opts.clicked.call(this.picker.select, this, event);
}
if ((this.opts.selected != null) && this.is_selected()) {
return this.opts.selected.call(this.picker.select, this, event);
}
};
ImagePickerOption.prototype.create_node = function() {
var image, imgAlt, imgClass, thumbnail;
this.node = jQuery("<li/>");
image = jQuery("<img class='image_picker_image'/>");
image.attr("src", this.option.data("img-src"));
thumbnail = jQuery("<div class='thumbnail'>");
imgClass = this.option.data("img-class");
if (imgClass) {
this.node.addClass(imgClass);
image.addClass(imgClass);
thumbnail.addClass(imgClass);
}
imgAlt = this.option.data("img-alt");
if (imgAlt) {
image.attr('alt', imgAlt);
}
thumbnail.on("click", this.clicked);
thumbnail.append(image);
if (this.opts.show_label) {
thumbnail.append(jQuery("<p/>").html(this.label()));
}
this.node.append(thumbnail);
return this.node;
};
return ImagePickerOption;
})();
}).call(this);
干杯