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Are JavaScript strings immutable? Do I need a “string builder” in JavaScript?
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They are immutable. You cannot change a character within a string with something like var myString = "abbdef"; myString[2] = 'c'. The string manipulation methods such as trim, slice return new strings.
In the same way, if you have two references to the same string, modifying...
Dependency Injection vs Factory Pattern
...Injection, we can solve using the factory pattern as well. Looks like when it comes to usage/design the difference between dependency injection and factory is blurred or thin.
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How do I fix “Failed to sync vcpu reg” error?
...VD for the android version, and everything appears correct, but when I run it, I get this output:
34 Answers
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CSS background image to fit width, height should auto-scale in proportion
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There is a CSS3 property for this, namely background-size (compatibility check). While one can set length values, it's usually used with the special values contain and cover. In your specific case, you should use cover:
body {
background-image: url(images/background.svg);
backgroun...
Can you use hash navigation without affecting history?
I'm afraid it might be impossible but is there a way to change the hash value of a URL without leaving an entry in the browser's history and without reloading ? Or do the equivalent?
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How to remove the first commit in git?
I am curious about how to remove the first commit in git.
9 Answers
9
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What's the dSYM and how to use it? (iOS SDK)
...SYM files. I guess this is a debugging related file, but I don't know what it is, and how to use it.
2 Answers
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What are the differences between a clustered and a non-clustered index?
...red index
Both types of index will improve performance when select data with fields that use the index but will slow down update and insert operations.
Because of the slower insert and update clustered indexes should be set on a field that is normally incremental ie Id or Timestamp.
SQL Server w...
Warning: mysql_connect(): [2002] No such file or directory (trying to connect via unix:///tmp/mysql.
I'm trying to connect to my MySQL DB with the Terminal on my Apple (With PHP).
17 Answers
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Get child node index
... jQuery, etc.), is there a way to determine a child node's index inside of its parent node without iterating over and comparing all children nodes?
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