眾所周知，parseInt() 是用來把字串轉換成整數的函式，一般來說，只要是數字開頭的字串，都能夠轉換成功，例如 parseInt('123a') 的結果為 123，parseInt('12 34') 的結果為12。 關於 parseInt() 有個著名的 ...

在 JavaScript 眼中，以 0x 開頭的字串，都視為十六進位字串，如果單單是0開頭，第二個字母不是 x，則視為八進位或二進位字串，十六進位使用的字母計有 0-9，A-F，而八進位使用的字母則為 0-7，所以，當發生parseInt ('08') 又未指定以何種數值型態解析時，JavaScript 以 0 為起頭，接下來的字母又不是 x ...

The parseInt() function parses a string argument and returns an integer of the specified radix (the base in mathematical numeral systems). An integer between 2 and 36 that represents the radix (the ...

When you want to convert a number to an integer in JavaScript, many people might think of parseInt() first. However, there is a major trap lurking here. Surprisingly, if you pass a 'too small decimal' ...

How do you override a built-in global function in such a way that you can call the original version of the function to do most of the work? There are few global functions in JavaScript but the ...

When you want to convert an array of strings to numbers in JavaScript, you might be tempted to use the shorthand map(parseInt) to keep your code clean. However ...

The function we have so far is good but you have to remember to call updateparseInt - not difficult but we can do better. Ideally what we would like is to directly define the parseInt function so that ...