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32 lines
797 B
32 lines
797 B
export function isDef(value) { |
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return value !== undefined && value !== null; |
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} |
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export function isObj(x) { |
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const type = typeof x; |
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return x !== null && (type === 'object' || type === 'function'); |
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} |
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export function isNumber(value) { |
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return /^\d+(\.\d+)?$/.test(value); |
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} |
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export function range(num, min, max) { |
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return Math.min(Math.max(num, min), max); |
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} |
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export function nextTick(fn) { |
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setTimeout(() => { |
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fn(); |
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}, 1000 / 30); |
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} |
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let systemInfo = null; |
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export function getSystemInfoSync() { |
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if (systemInfo == null) { |
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systemInfo = wx.getSystemInfoSync(); |
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} |
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return systemInfo; |
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} |
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export function addUnit(value) { |
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if (!isDef(value)) { |
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return undefined; |
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} |
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value = String(value); |
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return isNumber(value) ? `${value}px` : value; |
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}
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