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Please explain some of Paul Graham's points on Lisp
...leteness,
;; we won't concern ourselves with it
(require '[clojure.contrib.string :as str])
;; this is the interesting bit:
(println (str/replace-re #"\d+" "FOO" "a123b4c56"))
This snippet of Clojure code prints out aFOObFOOcFOO. Note that Clojure arguably does not fully satisfy the fourth point o...
How to check if a query string value is present via JavaScript?
How can I check if the query string contains a q= in it using JavaScript or jQuery?
10 Answers
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How to use Java property files?
...am("path/filename"));
} catch (IOException e) {
...
}
Iterate as:
for(String key : properties.stringPropertyNames()) {
String value = properties.getProperty(key);
System.out.println(key + " => " + value);
}
shar...
MySQL INNER JOIN select only one row from second table
I have a users table and a payments table, for each user, those of which have payments, may have multiple associated payments in the payments table. I would like to select all users who have payments, but only select their latest payment. I'm trying this SQL but i've never tried nested SQL sta...
Trusting all certificates using HttpClient over HTTPS
...er() {
public void checkClientTrusted(X509Certificate[] chain, String authType) throws CertificateException {
}
public void checkServerTrusted(X509Certificate[] chain, String authType) throws CertificateException {
}
public X509Certificat...
How can I find the length of a number?
...
var x = 1234567;
x.toString().length;
This process will also work forFloat Number and for Exponential number also.
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How to base64 encode image in linux bash / shell
... cat vlc.jpg | base64 -w 0 - in case someone want output as string to copy and paste.
– user285594
Mar 13 '14 at 10:45
1
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How do I write outputs to the Log in Android?
...ery long. You can define somewhere in your class:
private static final String TAG = "myApp";
and use it when debugging
Log.v(TAG, "did something");
You can apply as well a Filter to only search for the tag.
sha...
How do I read any request header in PHP
... of the header you need in UPPERCASE (and with '-' replaced by '_')
$headerStringValue = $_SERVER['HTTP_XXXXXX_XXXX'];
ELSE IF: you run PHP as an Apache module or, as of PHP 5.4, using FastCGI (simple method):
apache_request_headers()
<?php
$headers = apache_request_headers();
foreach ($hea...
Most efficient conversion of ResultSet to JSON?
The following code converts a ResultSet to a JSON string using JSONArray and JSONObject .
14 Answers
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