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Add up a column of numbers at the Unix shell
... . . .| x=$(echo <(cat)); echo $((0+${x// /+}+0)) if you want all bash all the time:
– qneill
Apr 3 '15 at 23:31
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What is a non-capturing group in regular expressions?
... Group 4: "sectetuer"
...
So, if we apply the substitution string:
$1_$3$2_$4
... over it, we are trying to use the first group, add an underscore, use the third group, then the second group, add another underscore, and then the fourth group. The resulting string would be like the one below....
How to filter object array based on attributes?
...art of the new ECMAScript 5th Edition standard, and can be found on almost all modern browsers.
For IE, you can include the following method for compatibility:
if (!Array.prototype.filter) {
Array.prototype.filter = function(fun /*, thisp*/) {
var len = this.length >>> 0;
if (ty...
User recognition without cookies or local storage
...ople are so security-aware that it would be difficult to get people to install these kinds of programs on their system. This leaves you stuck with using Cookies and other, similar tools.
Cookies and other, similar tools
You might consider building a Data Profile, then using Probability tests to id...
UINavigationBar Hide back Button Text
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You can check out my very simple solution for hiding all back buttons through out the app. P.S.: Requires zero line of code of your own
– Pratik Jamariya
Sep 20 '17 at 18:44
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How to tell git to ignore individual lines, i.e. gitignore for specific lines of code [duplicate]
...o be filtered:
*.rb filter=gitignore, i.e. run filter named gitignore on all *.rb files
Define the gitignore filter in your gitconfig:
$ git config --global filter.gitignore.clean "sed '/#gitignore$/d'", i.e. delete these lines
$ git config --global filter.gitignore.smudge cat, i.e. do nothing ...
How do I make curl ignore the proxy?
... shell script) would temporarily change its value.
(See curl's manual for all the variables it looks at, under the ENVIRONMENT heading.)
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How to disable/enable the sleep mode programmatically in iOS?
...back by overriding the viewWillDisappear:
override func viewWillDisappear(_ animated: Bool) {
UIApplication.shared.isIdleTimerDisabled = false
}
More about UIApplication Class.
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Easy way to print Perl array? (with a little formatting)
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Or, if you want to be really dirty: {local $,=', ';print @array}.
– musiKk
Apr 21 '11 at 7:57
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How to get city name from latitude and longitude coordinates in Google Maps?
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try {
JSONObject jsonObj = parser_Json.getJSONfromURL("http://maps.googleapis.com/maps/api/geocode/json?latlng=" + Global.curLatitude + ","
+ Global.curLongitude + "&sensor=true&key=YOUR_API_KEY");
String Status = json...