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How to wait until an element exists?

...atch the DOM. It's only supported in newer browsers though, so you should fall back onto DOMNodeInserted when MutationObserver isn't available. let observer = new MutationObserver((mutations) => { mutations.forEach((mutation) => { if (!mutation.addedNodes) return for (let i = 0; i &...
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How to check whether an object is a date?

...nd for this is to check the object's class via Object.prototype.toString.call(date) === '[object Date]' share | improve this answer | follow | ...
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Get Insert Statement for existing row in MySQL

...T INTO dest_db.dest_table SELECT * FROM source_db.source_table; If you really want the INSERT statements, then the only way that I know of is to use mysqldump http://dev.mysql.com/doc/refman/5.1/en/mysqldump.htm. You can give it options to just dump data for a specific table and even limit rows. ...
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How to avoid “ConcurrentModificationException” while removing elements from `ArrayList` while iterat

... Use an Iterator and call remove(): Iterator<String> iter = myArrayList.iterator(); while (iter.hasNext()) { String str = iter.next(); if (someCondition) iter.remove(); } ...
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How can I open a URL in Android's web browser from my application?

...d the http:// ! The URL is entered by the user, is there a way to automatically format? – Arutha Feb 4 '10 at 18:44 4 ...
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What is the difference between 'protected' and 'protected internal'?

...that's it's protected in current assembly and completely unavailable externally? – Shimmy Weitzhandler Oct 24 '15 at 23:16 8 ...
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How can I check if an element exists in the visible DOM?

...f the browser's selecting method, and checking it for a truthy value (generally). For example, if my element had an id of "find-me", I could simply use... var elementExists = document.getElementById("find-me"); This is specified to either return a reference to the element or null. If you must ha...
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Is a one column table good design? [closed]

It it ok to have a table with just one column? I know it isn't technically illegal, but is it considered poor design? 15 A...
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Need some clarification about beta/alpha testing on the developer console

...rs. It means you have to put their Gmail into the testers list. This is usually for employees. 2. Alpha testing - Same as internal testing, but this time you can send your app to your friends, families, or on your smartphones. 3. Beta testing - This is a serious matter, this is public testing. But p...
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git: How do I get the latest version of my code?

...it clean -xffd git pull Again, this will nuke any changes you've made locally so use carefully. Think about rm -Rf when doing this. share | improve this answer | follow ...