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How to implement “select all” check box in HTML?
.../script>
<input type="checkbox" onClick="toggle(this)" /> Toggle All<br/>
<input type="checkbox" name="foo" value="bar1"> Bar 1<br/>
<input type="checkbox" name="foo" value="bar2"> Bar 2<br/>
<input type="checkbox" name="foo" value="bar3"> Bar 3<br/&...
Get an object's class name at runtime
... element: ElementRef<HTMLElement> and then use if (element != null && element.nativeElement.tagName.startsWith('APP-')) { this.name = element.nativeElement.tagName; }
– Simon_Weaver
Jan 16 '19 at 22:19
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Why use 'git rm' to remove a file instead of 'rm'?
...ml
rm 'index.html'
$ git status -s
D index.html
However you can do this all in one go with just git rm
$ git status -s
$ git rm index.html
rm 'index.html'
$ ls
lib vendor
$ git status -s
D index.html
share
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javascript set a variable if undefined
... works on 98% of the use cases, why would you risk using === at all? For example: console.log(+0 === -0); // outputs true, while console.log(Object.is(+0, -0)); // outputs false -- which is better? Is negative 0 the same as positive 0? That's the question you have to ask yourself, but if you use Obj...
Can scrapy be used to scrape dynamic content from websites that are using AJAX?
...and am dipping my hand into building a web-scraper. It's nothing fancy at all; its only purpose is to get the data off of a betting website and have this data put into Excel.
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Getting a list of files in a directory with a glob
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Just went ahead and updated the code sample to use contentsOfDirectoryAtPath:error: rather than directoryContentsAtPath:
– Brian Webster
Jan 30 '11 at 19:50
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How to use ADB Shell when Multiple Devices are connected? Fails with “error: more than one device an
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Use the -s option BEFORE the command to specify the device, for example:
adb -s 7f1c864e shell
See also http://developer.android.com/tools/help/adb.html#directingcommands
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C++ STL Vectors: Get iterator from index?
...k('l');
vec.push_back('l');
vec.push_back('o');
vec.push_back('/0');
foo(&vec[0]);
}
Of course, either foo must not copy the address passed as a parameter and store it somewhere, or you should ensure in your program to never push any new item in vec, or requesting to change its capacity. Or r...
Difference between initLoader and restartLoader in LoaderManager
... re-use an existing Loader's data if there already is one,
so that for example when an Activity is re-created after a
configuration change it does not need to re-create its loaders.
restartLoader
Call to re-create the Loader associated with a particular ID. If
there is currently a Loade...
What are the most widely used C++ vector/matrix math/linear algebra libraries, and their cost and be
...ations for Vectors, VecOps.h contains
some, others are in Generate.h for example. cross(vec&,vec&,vec&) in
VecOps.h, [make]cross(vec&,vec&) in Generate.h
immature/unstable API; still changing.
For example "cross" has moved from "VecOps.h" to "Generate.h", and
then the...