I have the following bit of code:
Which prints the following in the console:
I've been bashing my head for a very long time, not sure where to go from here. It was working just fine when I pushed last. Then, I made some changes which broke it as you can see. To try to fix it, I stashed my changes, but I'm still getting this error.
Edit
search: throttle(live => {
let vm = this;
console.log("entered!!!");
console.log("this", this);
console.log("vm", vm);
if (typeof live == "undefined") {
live = true;
}
if (!live) {
// We are on the search page, we need to update the results
if (vm.$route.name != "search") {
vm.$router.push({ name: "search" });
}
}
vm.$store.dispatch("search/get", {
type: vm.searchType,
query: vm.searchQuery
});
}, 500)
Assuming search is in your methods it should not be using an arrow function as that will give you the wrong this binding.
Instead use:
methods: {
search: throttle(function (live) {
// ...
}, 500)
}
Here I'm also assuming that throttle will preserve the this value, which would be typical for implementations of throttling.
Like I said in my comment, I suspect this is a scoping issue.
Perhaps if you return the throttle function with the Vue component passed in, you might see better results:
search: function() {
let vm = this;
return throttle(live => {
console.log("entered!!!");
console.log("this", this);
console.log("vm", vm);
if (typeof live == "undefined") {
live = true;
}
if (!live) {
// We are on the search page, we need to update the results
if (vm.$route.name != "search") {
vm.$router.push({ name: "search" });
}
}
vm.$store.dispatch("search/get", {
type: vm.searchType,
query: vm.searchQuery
});
}, 500)
}
Related
I'm trying to look for an absence of an element in a conditional which would then take two different paths if the element is not there. However what I am getting is 'element not found' which is what I need but I need to go around this. Here is what I've tried:
if (HomeScreen.tabs.propertiesTab.isPresent()) {
HomeScreen.tabs.propertiesTab.click();
} else {
HomeScreen.tabs.allTabsTab.click().then(function() {
HomeScreen.allTabs.properties.click();
})
}
and
HomeScreen.tabs.propertiesTab.isPresent().toBeFalsy().then(function(isVisible) {
if (isVisible) {
HomeScreen.tabs.propertiesTab.click();
} else {
HomeScreen.tabs.allTabsTab.click().then(function() {
HomeScreen.allTabs.properties.click();
});
}
});
Any suggestions?
Try to explicitly resolve the promise with then():
browser.isElementPresent(HomeScreen.tabs.propertiesTab).then(function (isPresent) {
if (isPresent) {
// ...
} else {
// ...
}
});
Using browser.isElementPresent() here, but it should work with .isPresent() as well:
In protractor, browser.isElementPresent vs element.isPresent vs element.isElementPresent
I tried the following:
module.exports = function(less) {
function RemoveProperty() {
this._visitor = new less.visitors.Visitor(this);
};
RemoveProperty.prototype = {
isReplacing: true,
isPreEvalVisitor: true,
run: function (root) {
return this._visitor.visit(root);
},
visitRule: function (ruleNode, visitArgs) {
if(ruleNode.name[0].value != '-some-aribitrary-property')
{
return ruleNode;
}
else
{
return new less.tree.Rule([], [], 0,"");
}
}
};
return RemoveProperty;
};
return new less.tree.Rule([], [], 0,""); still result in a empty output like : ; also return nothing will give me an error: TypeError: Cannot read property 'splice' of undefined.
It can.. but its not ideal from a performance perspective.. return an empty array
visitRule: function (ruleNode, visitArgs) {
if (ruleNode.variable) {
return [];
}
return ruleNode;
},
If you check out the toCSS visitor it does this alot.
But I think it should allow undefined too.. Will look at adding that soon.
In my ExtJS 4.0.7 app I have some 3rd party javascripts that I need to dynamically load to render certain panel contents (some fancy charting/visualization widgets).
I run in to the age-old problem that the script doesn't finish loading before I try to use it. I thought ExtJS might have an elegant solution for this (much like the class loader: Ext.Loader).
I've looked at both Ext.Loader and Ext.ComponentLoader, but neither seem to provide what I'm looking for. Do I have to just "roll my own" and setup a timer to wait for a marker variable to exist?
Here's an example of how it's done in ExtJS 4.1.x:
Ext.Loader.loadScript({
url: '...', // URL of script
scope: this, // scope of callbacks
onLoad: function() { // callback fn when script is loaded
// ...
},
onError: function() { // callback fn if load fails
// ...
}
});
I've looked at both Ext.Loader and Ext.ComponentLoader, but neither
seem to provide what I'm looking for
Really looks like it's true. The only thing that can help you here, I think, is Loader's injectScriptElement method (which, however, is private):
var onError = function() {
// run this code on error
};
var onLoad = function() {
// run this code when script is loaded
};
Ext.Loader.injectScriptElement('/path/to/file.js', onLoad, onError);
Seems like this method would do what you want (here is example). But the only problem is that , ... you know, the method is marked as private.
This is exactly what newest Ext.Loader.loadScript from Ext.4-1 can be used for.
See http://docs.sencha.com/ext-js/4-1/#!/api/Ext.Loader-method-loadScript
For all you googlers out there, I ended up rolling my own by borrowing some Ext code:
var injectScriptElement = function(id, url, onLoad, onError, scope) {
var script = document.createElement('script'),
documentHead = typeof document !== 'undefined' && (document.head || document.getElementsByTagName('head')[0]),
cleanupScriptElement = function(script) {
script.id = id;
script.onload = null;
script.onreadystatechange = null;
script.onerror = null;
return this;
},
onLoadFn = function() {
cleanupScriptElement(script);
onLoad.call(scope);
},
onErrorFn = function() {
cleanupScriptElement(script);
onError.call(scope);
};
// if the script is already loaded, don't load it again
if (document.getElementById(id) !== null) {
onLoadFn();
return;
}
script.type = 'text/javascript';
script.src = url;
script.onload = onLoadFn;
script.onerror = onErrorFn;
script.onreadystatechange = function() {
if (this.readyState === 'loaded' || this.readyState === 'complete') {
onLoadFn();
}
};
documentHead.appendChild(script);
return script;
}
var error = function() {
console.log('error occurred');
}
var init = function() {
console.log('should not get run till the script is fully loaded');
}
injectScriptElement('myScriptElem', 'http://www.example.com/script.js', init, error, this);
From looking at the source it seems to me that you could do it in a bit of a hackish way. Try using Ext.Loader.setPath() to map a bogus namespace to your third party javascript files, and then use Ext.Loader.require() to try to load them. It doesn't look like ExtJS actually checks if required class is defined in the file included.
I want to migrate the javascript in my site from YU2 to YUI3, but I am only a poor amateur programer and I am stuck at the first pitfall.
I have the following code:
MyApp.Core = function() {
return {
init: function(e, MyAppConfig) {
if (MyAppConfig.tabpanels) {
MyApp.Core.prepareTabpanels(MyAppConfig.tabpanels);
}
},
prepareTabpanels: function(tabpanels) {
// Code here
}
}
}();
var MyAppConfig = {
"tabpanels":{"ids":["navigation"]}
};
YAHOO.util.Event.addListener(window, "load", MyApp.Core.init, MyAppConfig);
How can I pass the MyAppConfig object to the MyApp.Core.init function by using YUI3 "domready" event listener?
Thanks in advance!
You should be able to do something like:
var MyApp = {};
MyApp.Core = function(){ return {
init: function(MyAppConfig) {
console.log(MyAppConfig);
},
prepareTabpanels: function(tabpanels) {
// Code here
}
}
}();
var MyAppConfig = {
"tabpanels":{"ids":["navigation"]}
};
YUI().use('node', 'event', function(Y){
Y.on('domready', MyApp.Core.init, this, MyAppConfig);
});
Note that the event is not passed in as the first parameter, it is the config.
Y.on accepts parameters as <event_type>, <callback_function>, <context>, <params>..
any parameter after the third item is passed through to the callback function so MyAppConfig becomes the first parameter in your init.
EDIT
See the YUI3 API documentation here: http://developer.yahoo.com/yui/3/api/YUI.html#method_on
I can't seem to get a handle on my list of sortables. They are a list of list elements, each with a
form inside, which I need to get the values from.
Sortables.implement({
serialize: function(){
var serial = [];
this.list.getChildren().each(function(el, i){
serial[i] = el.getProperty('id');
}, this);
return serial;
}
});
var sort = new Sortables('.teams', {
handle: '.drag-handle',
clone: true,
onStart: function(el) {
el.fade('hide');
},
onComplete: function(el) {
//go go gadget go
order = this.serialize();
alert(order);
for(var i=0; i<order.length;i++) {
if (order[i]) {
//alert(order[i].substr(5, order[i].length));
}
}
}
});
the sortables list is then added to a list in a loop with sort.addItems(li); . But when I try to get the sortables outside of the sortables onComplete declaration, js says this.list is undefined.
Approaching the problem from another angle:
Trying to loop through the DOM gives me equally bizarre results. Here are the firebug console results for some code:
var a = document.getElementById('teams').childNodes;
var b = document.getElementById('teams').childNodes.length;
try {
console.log('myVar: ', a);
console.log('myVar.length: ', b);
} catch(e) {
alert("error logging");
}
Hardcoding one li element into the HTML (rather than being injected via JS) changes length == 1, and allows me to access that single element, leading me to believe that accessing injected elements via the DOM is the problem (for this method)
Trying to get the objects with document.getElementById('teams').childNodes[i] returns undefined.
thank you for any help!
not sure why this would fail, i tried it in several ways and it all works
http://www.jsfiddle.net/M7zLG/ test case along with html markup
here is the source that works for local refernece, using the native built-in .serialize method as well as a custom one that walks the dom and gets a custom attribute rel, which can be your DB IDs in their new order (I tend to do that)
var order = []; // global
var sort = new Sortables('.teams', {
handle: '.drag-handle',
clone: true,
onStart: function(el) {
el.fade('hide');
},
onComplete: function(el) {
//go go gadget go
order = this.serialize();
}
});
var mySerialize = function(parentEl) {
var myIds = [];
parentEl.getElements("li").each(function(el) {
myIds.push(el.get("rel"));
});
return myIds;
};
$("saveorder").addEvents({
click: function() {
console.log(sort.serialize());
console.log(order);
console.log(mySerialize($("teams")));
}
});