Validate decimal numbers in JavaScript - IsNumeric()
What's the cleanest, most effective way to validate decimal numbers in JavaScript?
Bonus points for:
- Clarity. Solution should be clean and simple.
- Cross-platform.
Test cases:
01. IsNumeric('-1') => true
02. IsNumeric('-1.5') => true
03. IsNumeric('0') => true
04. IsNumeric('0.42') => true
05. IsNumeric('.42') => true
06. IsNumeric('99,999') => false
07. IsNumeric('0x89f') => false
08. IsNumeric('#abcdef')=> false
09. IsNumeric('1.2.3') => false
10. IsNumeric('') => false
11. IsNumeric('blah') => false
Javascript
- asked 8 years ago
- B Butts
0Answer
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