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How to format code in Xcode? [duplicate]
...ant to format and then press Ctrl+I.
Use Cmd+A first if you wish to format all text in the selected file.
Note: this procedure only re-indents the lines, it does not do any advanced formatting.
In XCode 12 beta:
The new key binding to re-indent is Option+I.
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Remove the image from a imageview Android [duplicate]
I'm trying to make an ImageView that holds a gallery of images. By touching the user request to load the next image. If the next image isn't found in the server or takes time to load I need the old image to be empty.
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Delete terminal history in Linux [closed]
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Really like this answer - this takes effect immediately, rather than deleting .bash_history which requires the shell to be restarted to take effect.
– mikemaccana
Sep 11 '14 at 9:18
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How to return value from an asynchronous callback function? [duplicate]
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This is impossible as you cannot return from an asynchronous call inside a synchronous method.
In this case you need to pass a callback to foo that will receive the return value
function foo(address, fn){
geocoder.geocode( { 'address': address}, function(results, status) {
fn(r...
No suitable application records were found
...ad" - I'd never seen that there before! So I clicked on it, clicked yes to all the legal stuff and boom, "Prepare for upload" changed to "Waiting for upload". All is now right with the world. :)
– jowie
May 10 '12 at 16:15
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What's the purpose of starting semi colon at beginning of JavaScript? [duplicate]
...'t need to know these additional rules, and hope everyone else does. If we all had perfect knowledge all the time we could program in binary, but we don't. Best practice is there to assist us. It's up to you of course whether you choose to follow it or not.
– James Gaunt
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UNIX export command [closed]
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Unix
The commands env, set, and printenv display all environment variables and their values. env and set are also used to set environment variables and are often incorporated directly into the shell. printenv can also be used to print a single variable by giving that variab...
Conditionally Remove Dataframe Rows with R [duplicate]
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Actually, a simpler way of viewing it is: foo.isolated <- subset(foo, !(sid == "sid104" & game.num == 7))
– WGray
Aug 6 '15 at 21:01
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How to get the browser language using JavaScript [duplicate]
...hrome's navigator.language is always the language configuration of the installation of windows, rather than the language configuration of the browser.
– kybernetikos
Jul 31 '13 at 14:04
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What’s the purpose of prototype? [duplicate]
...-created each time; it exists in one place in the prototype. So when you call someAnimal.set_name("Ubu"); the this context will be set to someAnimal and (the one and only) set_name function will be called.
There is one advantage to using the first syntax though: functions created in this manner...