Java Programming – Word Wrap Problem
Java Programming – Word Wrap Problem – Dynamic Programming Given a sequence of words, and a limit on the number of characters that can be put in one line
Category: JAVASCRIPT
[ Solved -7 Answers] JAVASCRIPT – How to remove non-alphanumeric characters from a string
How to remove non-alphanumeric characters from a string – Sounds like you almost knew what you basically defined it as a regex
[ Solved -6 Answers] PHP – How do we check with PHP if directory exists
How do we check with PHP if directory exists – Both would return true on Unix systems – in Unix is a file, including directories
[ Solved -8 Answers] JAVASCRIPT – Get first n characters of a string
Get first n characters of a string – The Multibyte extension can come in if you need control over the string charset.
[ Solved -10 Answers ] JAVASCRIPT – How to merge properties of two JavaScript objects dynamically
[ Solved -10 Answers ] JAVASCRIPT – How to merge properties of two JavaScript objects dynamically we need to be merge two (very simple) JavaScript objects
[Solved -10 Answers] JAVASCRIPT – How to determine if variable is ‘undefined’ or ‘null’
PROBLEM: How to determine if variable is undefined or null? But if we are do this, the JavaScript interpreter halts execution. SOLUTION 1: We can do this: null == undefined is true, but null === undefined is false. Thus the code above, as is, will catch both undefined and null. SOLUTION 2: SOLUTION 3: This […]
[ Solved – 10 Answers ] JAVASCRIPT – How to Loop through plain JavaScript object with objects as members
PROBLEM How to loop through all members in a JavaScript object including values that are objects. For example, how could you loop through this (accessing the “your_name” and “your_message” for each)? SOLUTION 1: SOLUTION 2: Under ECMAScript 5, we can combine Object.keys() and Array.prototype.forEach(): SOLUTION 3: The problem with this is that we also loop […]
[Solved -7 Answers] JAVASCRIPT – How does Facebook disable the browser’s integrated Developer Tools
PROBLEM: How does Facebook disable the browser’s integrated Developer Tools? SOLUTION 1: We are testing this for some users to see if it can slow down some attacks where users are tricked into pasting (malicious) JavaScript code into the browser console. Just to be clear: Trying to block hackers client-side is a bad idea in […]
[Solved -9 Answers] JAVASCRIPT – Get the size of the screen, current web page and browser window
PROBLEM: How to get window Width, window Height, page Width, page Height, screen Width, screen Height, pageX, pageY, screenX, screenY which will work in all major browsers? SOLUTION 1: If we are using jQuery, we can get the size of the window or the document using jQuery methods: For screen size we can use the […]
[ Solved – 10 Answers ] JAVASCRIPT – Event binding on dynamically created elements
PROBLEM How to create Event binding on dynamically created elements? SOLUTION 1: As of jQuery 1.7 we should use jQuery.fn.on: Prior to this, the recommended approach was to use live(): However, live() was deprecated in 1.7 in favour of on(), and completely removed in 1.9. The live() signature: … can be replaced with the following on() signature: […]