This feature, although convenient, can be the source of many bugs. Particularly, you should watch for type conversions, which is when a value of one type turns into another.
In the example below, the string
'1' is converted into a number before the expression is evaluated.
'1' > 0 // true
An implicit conversion occurs without your explicit consent. For example, when a string and a number are added together with a
+ operand, the result is a string.
var ageGreeting = "I am " + 9 + " years old." // "I am 9 years old."
In the case you want to change from a number to a string or vice versa, you can do so explicitly.
var numString = "100"; var num = Number(numString); // 100
var numString = String(100); // '100' Next section: Control Flow
Relieve your stress, back, neck and sciatic pain through 1,782 acupuncture points for immediate neck pain relief. Made for lower, upper and mid chronic back pain treatment, and improves circulation, sleep, digestion and quality of life.$$ Check price
This book teaches HTML as if it's for anyone - hobbyists, students, and professionals - and it's full-color throughout. It utilizes information graphics and lifestyle photography to explain the topics in a simple way that is engaging. You can progress through the chapters from beginning to end or just dip into topics of particular interest at your leisure.$ Check price