How does javascript convert a number into a string

This article introduces the relevant knowledge of "how javascript converts numbers into strings". 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!

Javascript will be a number into a string of methods: 1, the number and empty string addition operation, the syntax "num +"; 2, the use of toString () method, syntax "num.toString ()"; 3, the use of toFixed () method, syntax "num.toFixed ()".

The operating environment of this tutorial: windows7 system, javascript1.8.5 version, Dell G3 computer.

Javascript converts numbers to strings

1. Use the plus operator

When a number is added to an empty string, JavaScript automatically converts the value to a string.

Var n = 123 typeof n = n + "; console.log (typeof n); / / return type is string

2. Use the toString () method

Var n = 123 n = n.toString (); console.log (typeof n)

3. Use the toFixed () method

Var n = 123.21 * * n = n.toFixed (); console.log (typeof n)

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