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MongoDB, remove object from array
...
my database:->
{
"_id" : ObjectId("5806056dce046557874d3ab18"),
"data" : [
{
"id" : 1
},
{
"id" : 2
},
{
"id" :...
Reading Properties file in Java
...
my file hierarchy is: src -> myPackage -> myClass.java , myProp.properties. I did what you advised me but it still throws the same exception
– nikos
Nov 27 '11 at 13:03
...
Reverse engineering from an APK file to a project
...onvert the APK file to JAR:
$ d2j-dex2jar.bat demo.apk
dex2jar demo.apk -> ./demo-dex2jar.jar
Once the JAR file is generated, use JD-GUI to open the JAR file. You will see the Java files.
The output will be similar to:
...
AWK: Access captured group from line pattern
... gawk != awk. They're different tools and gawk isn't available by default in most places.
– Oli
Sep 4 '12 at 12:21
7
...
“render :nothing => true” returns empty plaintext file?
...you can try to manually set the content type like this:
render :nothing => true, :status => 200, :content_type => 'text/html'
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...
add created_at and updated_at fields to mongoose schemas
...ears later)
You can now use the #timestamps option with mongoose version >= 4.0.
let ItemSchema = new Schema({
name: { type: String, required: true, trim: true }
},
{
timestamps: true
});
If set timestamps, mongoose assigns createdAt and updatedAt fields to your schema, the type assigned ...
Parsing huge logfiles in Node.js - read in line-by-line
...k) {
this.reader
.pipe(es.split())
.pipe(es.mapSync(line => {
++this.lineNumber
parse(line, this.parseOptions, (err, d) => {
this.data.push(d[0])
})
if (this.lineNumber % this.batchSize === 0) {
callback(this.data)
}...
What is the meaning of the 'g' flag in regular expressions?
...
Example in Javascript to explain:
> 'aaa'.match(/a/g)
[ 'a', 'a', 'a' ]
> 'aaa'.match(/a/)
[ 'a', index: 0, input: 'aaa' ]
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What is the difference between a symbolic link and a hard link?
...files:
$ touch foo; touch bar
Enter some Data into them:
$ echo "Cat" > foo
$ echo "Dog" > bar
(Actually, I could have used echo in the first place, as it creates the files if they don't exist... but never mind that.)
And as expected:
$cat foo; cat bar
Cat
Dog
Let's create hard and s...
Architecture of a single-page JavaScript web application?
...tion on
Single Page Application (SAP)?
Answer - Because,
-> SPA is not some kind of core technology that is newly invented for which we need to reinvent the wheel for a lot of things that we are doing in application development.
-> Its a concept driven by the need for better ...