mirror of
https://github.com/angular/angular
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16 lines
554 B
TypeScript
16 lines
554 B
TypeScript
import {isArray, isString, isBlank, assertionsEnabled} from '../facade/lang';
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import {BaseException} from '../facade/exceptions';
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export function assertArrayOfStrings(identifier: string, value: any) {
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if (!assertionsEnabled() || isBlank(value)) {
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return;
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}
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if (!isArray(value)) {
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throw new BaseException(`Expected '${identifier}' to be an array of strings.`);
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}
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for (var i = 0; i < value.length; i += 1) {
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if (!isString(value[i])) {
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throw new BaseException(`Expected '${identifier}' to be an array of strings.`);
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}
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}
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}
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