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changing source on html5 video tag

...rying to set up a video page that doesn't show ANY video until the visitor selects one. I could set up a video tag with an empty source tag, but it would always generate a failure on a javascript debug console. Now I know I can hold off on adding a 'source' until the user selects one. Till now, I di...
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console.log timestamps in Chrome?

...2) > click the three-dot menu in the top right > click settings > select Preferences in the left menu > check show timestamps in the Console section of the settings screen (top right) – tekiegirl Sep 4 '18 at 9:52 ...
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How can I determine what font a browser is actually using to render some text?

...that, but Safari needs you to copy some text and investigate that. First, select some text. In Firefox, the Page Inspector has a Fonts view: This will also tell you if fonts were downloaded, and which style is used, such as Regular, ExtraLight, Italic, BoldItalic and all. For Chrome, go into De...
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Event on a disabled input

... @Protectorone :disabled is a pseudo-class since CSS 3: w3.org/TR/css3-selectors/#UIstates – Martin Jul 12 '17 at 11:41  |  show 3 more co...
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How can I determine installed SQL Server instances and their versions?

...To do this... At command line: svrnetcn In the enabled protocols list, select 'TCP/IP', then click properties. There is a check box for 'Hide server'. share | improve this answer | ...
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Debugging WebSocket in Google Chrome

...ad your page and initiate the WebSocket connections Click the Network Tab. Select the WebSocket connection from the list on the left (it will have status of "101 Switching Protocols". Click the Messages sub-tab. Binary frames will show up with a length and time-stamp and indicate whether they are ma...
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In MySQL queries, why use join instead of where?

...FROM clause Write the association between the tables in the WHERE clause SELECT * FROM TABLE_A a, TABLE_B b WHERE a.id = b.id Here's the query re-written using ANSI-92 JOIN syntax: SELECT * FROM TABLE_A a JOIN TABLE_B b ON b.id = a.id From a Performance Perspective: Where su...
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How to make input type= file Should accept only pdf and xls

... if you list all files on selection box. you can still uploading any file. – rüff0 Jan 5 '19 at 15:35 add a comment ...
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Differences between detach(), hide() and remove() - jQuery

....empty() The .empty() method removes all child nodes and content from the selected elements. This method does not remove the element itself, or its attributes. Note The .empty() method does not accept any argument to avoid memory leaks. jQuery removes other constructs, such as data and event hand...
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There is already an open DataReader associated with this Command which must be closed first

...s = from account in context.Accounts from guranteer in account.Gurantors select new AccountsReport { CreditRegistryId = account.CreditRegistryId, AccountNumber = account.AccountNo, DateOpened = account.DateOpened, }; return accounts.AsEnumerable() .Select((account, ind...