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Is well formed without a ?

Is it valid to have <input> without it being in a <form> ? 7 Answers 7 ...
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Using ls to list directories and their total sizes

... Try something like: du -sh * short version of: du --summarize --human-readable * Explanation: du: Disk Usage -s: Display a summary for each specified file. (Equivalent to -d 0) -h: "Human-readable" output. Use unit suffixes: B...
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How to retry after exception?

I have a loop starting with for i in range(0, 100) . Normally it runs correctly, but sometimes it fails due to network conditions. Currently I have it set so that on failure, it will continue in the except clause (continue on to the next number for i ). ...
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How to extract year and month from date in PostgreSQL without using to_char() function?

I want to select sql: SELECT "year-month" from table group by "year-month" AND order by date , where year-month - format for date "1978-01","1923-12". select to_char of couse work , but not "right" order: ...
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Where to install Android SDK on Mac OS X?

... Now the android-sdk has migrated from homebrew/core to homebrew/cask. brew tap homebrew/cask and install android-sdk using brew cask install android-sdk You will have to add the ANDROID_HOME to profile (.zshrc or .bashrc) export ANDROID_HOME=/u...
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How to execute a function when page has fully loaded?

I need to execute some JavaScript code when the page has fully loaded. This includes things like images. 13 Answers ...
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What's the scope of a variable initialized in an if statement?

I'm new to Python, so this is probably a simple scoping question. The following code in a Python file (module) is confusing me slightly: ...
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SVN upgrade working copy

I cannot do a SVN commit. I get this error: 10 Answers 10 ...
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Deleting an object in java?

... You should remove the references to it by assigning null or leaving the block where it was declared. After that, it will be automatically deleted by the garbage collector (not immediately, but eventually). Example 1: Object a = new Object(); a = null; // after this, if...
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Convert dd-mm-yyyy string to date

i am trying to convert a string in the format dd-mm-yyyy into a date object in JavaScript using the following: 14 Answers ...