The basics of the ten-year Development series-JavaScript
Zeng Lin
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I. SUMMARY of JavaScript functions
- NaN: Is not a function, it simply represents a value. It is often used to deal with a value that would otherwise have been expected to be a numerical result, but not a numerical result. For example, var total = 8 * init, adding init is not initialized, then the value of total is Nan.
- IsNaN (): Determines whether the parameter is a number
- parseint (): Resolve argument effort to integer type
- Parsefloat (): Resolve parameter effort to floating-point type
- Tofix (): Rounds the entry parameter to the specified number of digits. such as total.tofixed (2). If the value of the total variable is 88, then the result of Total.tofix (2) is 88.00.
(001) JavaScript functions
