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src: prefer param function check over args length #23835

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src: prefer param function check over args length #23835

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8 changes: 4 additions & 4 deletions lib/fs.js
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Original file line number Diff line number Diff line change
Expand Up @@ -415,7 +415,7 @@ function open(path, flags, mode, callback) {
callback = flags;
flags = 'r';
mode = 0o666;
} else if (arguments.length === 3) {
} else if (typeof mode === 'function') {
callback = mode;
mode = 0o666;
}
Expand Down Expand Up @@ -808,7 +808,7 @@ function readdirSync(path, options) {
}

function fstat(fd, options, callback) {
if (arguments.length < 3) {
if (typeof options === 'function') {
callback = options;
options = {};
}
Expand All @@ -819,7 +819,7 @@ function fstat(fd, options, callback) {
}

function lstat(path, options, callback) {
if (arguments.length < 3) {
if (typeof options === 'function') {
callback = options;
options = {};
}
Expand All @@ -832,7 +832,7 @@ function lstat(path, options, callback) {
}

function stat(path, options, callback) {
if (arguments.length < 3) {
if (typeof options === 'function') {
callback = options;
options = {};
}
Expand Down