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Toggle Checkboxes on/off

... You can write: $(document).ready(function() { $("#select-all-teammembers").click(function() { var checkBoxes = $("input[name=recipients\\[\\]]"); checkBoxes.prop("checked", !checkBoxes.prop("checked")); }); }); Before jQuery 1.6, when w...
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How do I check whether a checkbox is checked in jQuery?

...sting code, you could therefore do this: if(document.getElementById('isAgeSelected').checked) { $("#txtAge").show(); } else { $("#txtAge").hide(); } However, there's a much prettier way to do this, using toggle: $('#isAgeSelected').click(function() { $("#txtAge").toggle(this.che...
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How can I initialize a String array with length 0 in Java?

... Add such commentary to your question...or select one of the answers which said the same thing. – Jonathan Leffler Nov 3 '09 at 8:12 6 ...
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What can you use Python generator functions for?

...uld like to update Alexa rank for each domain. First thing you need is to select your domain names from the database. Let's say your table name is domains and column name is domain. If you use SELECT domain FROM domains it's going to return 100 million rows which is going to consume lot of memory...
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Unresolved reference issue in PyCharm

...         After all this don't forget to restart. In PyCharm menu select: File --> Invalidate Caches / Restart share | improve this answer | follow ...
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How can I deploy an iPhone application from Xcode to a real iPhone device?

...w the use of this certificate: Launch Keychain Access.app. With no items selected, from the Keychain menu select Certificate Assistant, then Create a Certificate. Name: iPhone Developer Certificate Type: Code Signing Let me override defaults: Yes Click Continue Validity: 3650 days Click Cont...
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How to generate a random number in C++?

...me(CLOCK_REALTIME, &tm); return tm.tv_nsec; } int main (int argc, char* argv[]) { unsigned int dice_rolls = 12; random::mt19937 rng(current_time_nanoseconds()); random::uniform_int_distribution<> six(1,6); for(unsigned int i=0; i<dice_rolls; i++){ cout <...
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Using current time in UTC as default value in PostgreSQL

...rap it in a function: create function now_utc() returns timestamp as $$ select now() at time zone 'utc'; $$ language sql; create temporary table test( id int, ts timestamp without time zone default now_utc() ); shar...
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Floating point vs integer calculations on modern hardware

...tv.tv_usec); # endif } template< typename Type > void my_test(const char* name) { Type v = 0; // Do not use constants or repeating values // to avoid loop unroll optimizations. // All values >0 to avoid division by 0 // Perform ten ops/iteration to reduce // impact of ++i be...
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Is floating point math broken?

...e last place. The table of reciprocals of Y (1/Y) is known as the quotient selection table (QST) in the slow division, and the size in bits of the quotient selection table is usually the width of the radix, or a number of bits of the quotient computed in each iteration, plus a few guard bits. For t...