15 lines
306 B
JavaScript
15 lines
306 B
JavaScript
export function isBalanced(str){
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let counter = 0;
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for(const letter of str){
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if(letter === "("){
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counter += 1;
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}
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if(letter === ")"){
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counter -= 1;
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}
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if(counter < 0){
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return false;
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}
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}
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return counter === 0;
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} |