Note that the "right thing" doesn't just exist in the positive space. We can use negative numbers easily as well. To use negative numbers, just place a minus (-) character before the number we want to turn into a negative value:
These include Infinity (both positive and negative) and "Not A Number", to signify an impossible numeric outcome. let x = 0; console.log(1/x); // Infinity console.log(-1/x); // -Infinity console.log(-1); // Nan, ie. Not A Number The Infinities are soft errors and allow ...
Thus, JavaScript converts the type of "2" to numeric and then applies the unary + sign to it (i.e., treats it as a positive number). As a result, the next operation is now 1 + 2 which of course yields 3. But then, we have an operation between a number and a string (i.e....
Text box to accept only positive and negative numbers with 2 decimals Text changed event of a readonly textbox text overflow out of the div box when zooming in/out Textbox first letter in caps textbox length count Textbox onblur event Textbox Onchange event ... pass textbox IDs to func...
Division by zero yields positive or negative infinity, while 0/0 evaluates to NaN: neither of these cases raises an error. The % operator computes the first operand modulo the second operand. In other words, it returns the remainder after whole-number division of the first operand by the ...
To convert a number to Int32, you first convert it to Uint32. If its highest bit is set (if it is greater or equal to 231) then 232 is subtracted to turn it into a negative number (232 is 4294967295+1). function ToInt32(x) { var uint32 = ToUint32(x); if (uint32 >= Ma...
I strongly recommendYao'sregular expression mini-book. After reading this book, the author slowly began to understand the regularity and no longer resisted it. This article is mainly based on the content of this book. Summarize. refer to ...
The parameter is a positive number, return +1 The parameter is negative, return -1 The parameter is 0, return 0 The parameter is -0, return -0 Other values, return NaN console.log(Math.sign(5)) // 1 console.log(Math.sign(-5)) // -1 console.log(Math.sign(0)) // 0 console....
First, call stat to find the number of messages in the mailbox. When you get the number, for example, 10, call top once, passing each message number in turn, until you get to the total (in this case, 10). For the in_lines parameter, use a value of 0 so that no body lines ...
At the same time, we all know that JavaScript is quite a funny language with tricky parts. Some of them can quickly turn our everyday job into hell, and some of them can make us laugh out loud. The original idea for WTFJS belongs toBrian Leroux. This list is highly inspired by his...