2008年10月29日 · JavaScript, despite the name, is essentially unrelated to the Java programming language, although both have the common C syntax, and JavaScript copies many Java names and naming conventions. The language was originally named "LiveScript" but was renamed in a co-marketing deal between Netscape and Sun, in exchange for Netscape bundling Sun's ...

I saw this question and I am wondering about the same thing in JavaScript. If you use the character ' or the character " when making strings in JavaScript, the application seems to behave the same. So what is the difference between these two characters? The only advantage I have seen in using ' to build strings is that I can do stuff like:

2009年2月7日 · JavaScript has both strict and type-converting equality comparison. For strict equality the objects being compared must have the same type and: Two strings are strictly equal when they have the same sequence of characters, same length, and same characters in corresponding positions.

2013年12月23日 · JavaScript is a bit peculiar when it comes to the keyword "this". In JavaScript, functions are objects, and the value of "this" depends on how a function is called. In fact, just read the linked article to understand how JavaScript treats the "this" keyword- …

2010年9月24日 · Having said that, here are a couple links to the "Computer Language Benchmarks Games" comparing Java and Javascript implementations: JavaScript TraceMonkey vs Java 6 -Xint; JavaScript V8 vs Java 6 -Xint; Note that these are comparing Javascript with interpreted Java. You can fiddle around with the settings to get comparisons with (for example ...

This operator is almost never used in JavaScript. Other programming languages (like C and Java) use it for performance reasons or to work with binary data. In JavaScript, it has questionable performance, and we rarely work with binary data. This operator expects two numbers and returns a number. In case they are not numbers, they are cast to ...

2010年9月16日 · Prior to Google Chrome's JavaScript JIT, Java would win over JavaScript as soon as the problem got big enough to overcome the load time. Java should still roundly trounce JavaScript due to integer vs. float math. No matter how good the JIT it can't really make up for this. WebAssembly will turn this on its head anyway.

2008年12月11日 · When using === for JavaScript equality testing, everything is as is. Nothing gets converted before being evaluated. var1 == var2. When using == for JavaScript equality testing, some funky conversions take place. Summary of equality in Javascript

2016年8月9日 · JavaScript is converting the two operands into the same type and comparing them. In essence, the equality operator tests that values are the same irrespective of their type. If you want to test to ensure that the values and the types are the same, then you need to use the identity operator (===, three equal signs, rather than the two of the ...

2011年12月25日 · Java vs Javascript Regex problem. 0. Difference between two regex pattern in javascript. 5. JavaScript ...