23 lines
798 B
JavaScript
23 lines
798 B
JavaScript
import { helper } from '@ember/component/helper';
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/**
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* Conditionally maps styles to a string ready for typical DOM
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* usage (i.e. semi-colon delimited)
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*
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* @typedef {([string, (string | undefined), string] | [string, (string | undefined)])} styleInfo
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* @param {styleInfo[]} entries - An array of `styleInfo`s to map
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* @param {boolean} transform=true - whether to perform the build-time 'helper
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* to modifier' transpilation. Note a transpiler needs installing separately.
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*/
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const styleMap = (entries, transform = true) => {
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const str = entries.reduce((prev, [prop, value, unit = '']) => {
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if (value == null) {
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return prev;
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}
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return `${prev}${prop}:${value.toString()}${unit};`;
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}, '');
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return str.length > 0 ? str : undefined;
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};
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export default helper(styleMap);
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