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What's the valid way to include an image with no src?

I have an image that I will dynamically populate with a src later with javascript but for ease I want the image tag to exist at pageload but just not display anything. I know <img src='' /> is invalid so what's the best way to do this? ...
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Long-lasting FB access-token for server to pull FB page info

... not expire (with help from @Igy), here is a clear, step-by-step quide for all those looking to the same: Make sure you are the admin of the FB page you wish to pull info from Create a FB App (should be with the same user account that is the page admin) Head over to the Facebook Graph API Explorer...
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Create objective-c class instance by name?

... id object = [[NSClassFromString(@"NameofClass") alloc] init]; share | improve this answer | follow | ...
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Mac OS X - EnvironmentError: mysql_config not found

... Ok, well, first of all, let me check if I am on the same page as you: You installed python You did brew install mysql You did export PATH=$PATH:/usr/local/mysql/bin And finally, you did pip install MySQL-Python (or pip3 install mysqlclient if...
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Sort JavaScript object by key

...uestion are outdated, never matched implementation reality, and have officially become incorrect now that the ES6/ES2015 spec has been published. See the section on property iteration order in Exploring ES6 by Axel Rauschmayer: All methods that iterate over property keys do so in the same ord...
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Unicode characters in URLs

... in Firefox, the clipboard will hold the percent-encoded form (which is usually a good thing), but if you copy only a part of it, it will remain unencoded. share | improve this answer | ...
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How to send an email with Python?

... family reunion' # me == the sender's email address # family = the list of all recipients' email addresses msg['From'] = me msg['To'] = ', '.join(family) msg.preamble = 'Our family reunion' # Assume we know that the image files are all in PNG format for file in pngfiles: # Open the files in bin...
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How can HTML5 “replace” Flash? [closed]

...endered, and the javascript code which manipulates the HTML and CSS dynamically. Furthermore, HTML5 not only has the standard text elements, but also <canvas> on which 2d graphics can be drawn, and <video> elements which embeds the video (as the name suggests). So, in a full-fledged ...
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Can I use a function for a default value in MySql?

...re_insert_app_users BEFORE INSERT ON app_users FOR EACH ROW SET new.api_key = uuid(); share | improve this answer | follow | ...
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How to open standard Google Map application from my application?

...mmIntentUri = Uri.parse("google.navigation:q=" + 12f " +"," + 2f); Intent mapIntent = new Intent(Intent.ACTION_VIEW, gmmIntentUri); mapIntent.setPackage("com.google.android.apps.maps"); startActivity(mapIntent); – David Thompson Mar 9 '17 at 12:14 ...