JS regular limit can only input numbers or numbers with decimal points, and the number of digits after the decimal point is limited
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JS regular limit can only input numbers or numbers with decimal points, and the number of digits after the decimal point is limited

HaoOuBa
HaoOuBa
2021-02-23 / 2 Comments / 628 Reading / Checking whether to include
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Length represents the number of decimal places when entering decimal places

 const length = 2 const reg = new RegExp(`^\\d+(\\.\\d{1,${length}})?$`)
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