How to convert an object to json in Node.js?
How to convert general JavaScript objects to json in Node.js?
Assume jo is a JavaScript object, you can convert it to a json string by:
JSON.stringify(jo)
How to convert general JavaScript objects to json in Node.js?
Assume jo is a JavaScript object, you can convert it to a json string by:
JSON.stringify(jo)
On Linux (Fedora 17 x86-64), Chrome keeps reporting “Adobe Flash Player was blocked because it is out of date.” every time I browse a page that contains Flash. How to fix this? I did this and it turned to be working for me: Disable the libpepflashplayer in Chrome by run chrome://plugins/ in the URL bar….
Attaching a USB keyboard to a laptop is common when using a laptop because a normal keyboard may provide a more convenient typing experience. The laptop keyboard is not used in these situations. However, the laptop keyboard may still be touched by accident. In this post, we will discuss how to disable and enable the…
Any good suggestions on a Java REPL implementation like ‘scala’ and ‘python’ or ‘php -a’? The java-repl tool https://github.com/albertlatacz/java-repl/ works nicely for most situations for me. It is released as a .jar. Hence, it is easy to download and run: $ wget –quiet https://github.com/albertlatacz/java-repl/releases/download/428/javarepl-428.jar -O /tmp/javarepo-428.jar && java -jar /tmp/javarepo-428.jar One usage example is as…
Admins usually need to generate some passwords for others, such as when creating a new user in a Linux system. How to generate a password in Shell on Linux? Several possible and short methods. Here, we generate a password of length 8. Using pwgen: $ pwgen 8 1 dao3PaW9 Password based on base64 (note that…
I upload files using the aws cli http://www.systutorials.com/239665/uploading-large-files-amazon-s3-aws-cli/ . But how to get the metadata of an object in AWS S3? You can use the s3api‘s head-object command to get the metadata of an object. Taking one example: $ aws s3api head-object –bucket test-hkust –key dir2/fileupload/fb0c6353-a90c-4522-9355-7cd16cf756ff.file.txt It will print results like { “AcceptRanges”: “bytes”, “ContentType”:…
What are sequence points in C? The comp.lang.c FAQ explains this quite well. A sequence point is a point in time at which the dust has settled and all side effects which have been seen so far are guaranteed to be complete. The sequence points listed in the C standard are: at the end of…