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Is there a JavaScript function that can pad a string to get to a determined length?
... method
If you are doing this repeatedly, for example to pad values in an array, and performance is a factor, the following approach can give you nearly a 100x advantage in speed (jsPerf) over other solution that are currently discussed on the inter webs. The basic idea is that you are providing th...
How to parse Excel (XLS) file in Javascript/HTML5
... is your object
var XL_row_object = XLSX.utils.sheet_to_row_object_array(workbook.Sheets[sheetName]);
var json_object = JSON.stringify(XL_row_object);
console.log(json_object);
})
};
reader.onerror = function(ex) {
console.log(ex);
};
reader.re...
Handling optional parameters in javascript
...
So use the typeof operator to determine if the second parameter is an Array or function.
This can give some suggestions:
http://www.planetpdf.com/developer/article.asp?ContentID=testing_for_object_types_in_ja
I am not certain if this is work or homework, so I don't want to give you the answer...
Grabbing the href attribute of an A element
...h('/^<a.*?href=(["\'])(.*?)\1.*$/', $str, $m);
var_dump($m);
Output:
array(3) {
[0]=>
string(37) "<a title="this" href="that">what?</a>"
[1]=>
string(1) """
[2]=>
string(4) "that"
}
sh...
How do I grab an INI value within a shell script?
...o access variables, you simply printing them: echo $var1. You may also use arrays as shown above (echo ${IPS[@]}).
If you only want a single value just grep for it:
source <(grep var1 file.ini)
For the demo, check this recording at asciinema.
It is simple as you don't need for any external libra...
Removing viewcontrollers from navigation stack
...
Use this code and enjoy:
NSMutableArray *navigationArray = [[NSMutableArray alloc] initWithArray: self.navigationController.viewControllers];
// [navigationArray removeAllObjects]; // This is just for remove all view controller from navigation stack.
[nav...
UTF-8 byte[] to String
...redInputStream to read the bytes of a UTF-8 encoded text file into a byte array. I know that I can use the following routine to convert the bytes to a string, but is there a more efficient/smarter way of doing this than just iterating through the bytes and converting each one?
...
Learning Python from Ruby; Differences and Similarities
...as compact. It's also not as efficient since it first converts the values array into a shorter intermediate array containing the values greater than 15. Then, it takes the intermediate array and generates a final array containing the squares of the intermediates. The intermediate array is then th...
conversion from string to json object android
...
what if the string is an array of JSON objects? Like "[{},{},{}]"
– Francisco Corrales Morales
Jun 17 '14 at 23:18
3
...
Is there auto type inferring in Java?
...type in Java. The same loop can be achieved as:
for ( Object var : object_array)
System.out.println(var);
Java has local variables, whose scope is within the block where they have been defined. Similar to C and C++, but there is no auto or register keyword. However, the Java compiler will not a...