25 lines
672 B
TypeScript
25 lines
672 B
TypeScript
const charList = [
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'0', '1', '2', '3', '4', '5', '6', '7', '8', '9',
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'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j',
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'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't',
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'u', 'v', 'w', 'x', 'y', 'z',
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];
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export function randStr(len: number): string {
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const result = [];
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const charListLen = charList.length;
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let isStart = true;
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while(len > 0){
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const randChrIdx = Math.floor(Math.random() * charListLen);
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if(isStart){
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if(randChrIdx == 0){
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continue;
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}
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isStart = false;
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}
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result.push(charList[randChrIdx]);
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len -= 1;
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}
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return result.join('');
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} |