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How to do associative array/hashing in JavaScript
...create key-to-value object maps with the following syntax:
var point = { x:3, y:2 };
point["x"] // returns 3
point.y // returns 2
You can iterate through an associative array using the for..in loop construct as follows
for(var key in Object.keys(dict)){
var value = dict[key];
/* use key/valu...
Print All JVM Flags
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36
Do not miss also -XX:+JVMCIPrintProperties for Graal JIT options.
Before dive into sources you...
How is “int main(){(([](){})());}” valid C++?
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edited May 23 '17 at 12:25
Community♦
111 silver badge
answered Nov 28 '12 at 10:51
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Android adb not found
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143
On Linux, Android SDK platform-tools package containing adb used to be 32bit. It worked fine on ...
Is storing a delimited list in a database column really that bad?
...n’t ensure that each value is the right data type: no way to prevent 1,2,3,banana,5
Can’t use foreign key constraints to link values to a lookup table; no way to enforce referential integrity.
Can’t enforce uniqueness: no way to prevent 1,2,3,3,3,5
Can’t delete a value from the list without ...
How can I get `find` to ignore .svn directories?
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answered Feb 22 '10 at 22:13
Brian AgnewBrian Agnew
248k3535 gold badges309309 silver badges420420 bronze badges
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Ruby on Rails production log rotation
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203
Option 1: syslog + logrotate
You can configure rails, to use the systems log tools.
An exampl...
gitignore without binary files
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answered Aug 31 '14 at 14:05
VenomVendorVenomVendor
13.6k1111 gold badges6262 silver badges8888 bronze badges
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How to “warm-up” Entity Framework? When does it get “cold”?
.... Neither build your inheritance hierarchies too deep nor too wide. Only 2-3 properties specific to some class may not be enough to require an own type, but could be handled as optional (nullable) properties to an existing type.
Don't hold on to a single context for a long time. Each context instan...