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This article introduces the relevant knowledge of "how javascript converts percentages into decimals". In the operation of actual cases, many people will encounter such a dilemma, so let the editor lead you to learn how to deal with these situations. I hope you can read it carefully and be able to achieve something!

Methods: 1, use the replace () method to remove the percentage sign, the syntax is "percentage object. Replace ("% ",") "; 2, use the" / "operator to divide the number of the percentage sign by 100, and the syntax is" remove the percentage of the percent sign / 100 "; 3, the percentage that has been divided by 100 can be output.

The operating environment of this tutorial: windows10 system, javascript1.8.5 version, Dell G3 computer.

How does javascript convert percentages to decimals

The replace () method is used to replace some characters in a string with other characters, or to replace a substring that matches a regular expression.

Grammar

StringObject.replace (regexp/substr,replacement)

Return value

A new string is obtained after replacing the first match or all matches of regexp with replacement.

Convert a percentage to a decimal

1. Remove the percent sign first.

two。 Then divide it by 100.

3. Go back out

Examples are as follows:

Var percent = "4.2%"; / / declare function toPoint (percent) {var str=percent.replace ("%", "); str= str/100; return str;} toPoint (percent); var result = toPoint (percent); [xss_clean] (result); / / 0.042

Output result:

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